comp1 Flashcards
Q1. ………. is the maximum amount of data that can be stored on a storage medium.(a) Optical storage(b) Magnetic storage(c) Solid-state storage(d) Storage capacity(e) None of these
(d)Explanation: (d) Storage capacity refers to how much disk space one or more storage devices provide. Storage capacity measures how much data a computer system may contain. For eg. a computer with a 100 GB hard drive has a storage capacity of 100 GB.
- A …….. is a software program used to view Web pages.(a) host(b) site(c) link(d) browser(e) None of these
(d)Explanation: (d) Web browser is a software application used to enable computers users to locate and access web pages. Browsers trans- lates the basic HTML code that allows us to see images, text videos and listen to audios on websites, along with hyperlinks that let us travel to different web pages. The browser gets in contact with the web server and requests for information.
- A computer system includes …. .(a) software(b) hardware(c) peripheral devices(d) All of the above(e) None of these
(d)Explanation: (d) A computer system comprises of hardware (physical parts of a computer that can be seen or touched). Hardware may include the system unit which form the core architechture of computer and comprises of CPU, memory, motherboard, buses, etc. It may also include peripheral devices. Which are connected to the system unit. It include input devices, output devices and storagedevices. A computer software refers to the set the instructions that directs a computer’s processor to perform specific operations.
- The term ……… refers to any computer component that is required to perform work.(a) kernel(b) bootstrap(c) resource(d) source code(e) None of these
(c)Explanation: (c) A system resource is any usable part of a computer that can be controlled and assigned by the operating system so all of the hardware and software on the computer can work together as designed. Every device connected to a computer system is a resource.
- The term …….. refers to data storage systems that make it possible for a computer or electronic device to store and retrieve data.(a) input technology(b) retrieval technology(c) output technology(d) storage technology(e) None of these
(d)Explanation: (d) Storage technology refers to the technology used to store the images or information obtained through the use of some form of capture technology. This includes the medium used for storage the compression methodology used to minimize the amount of storage medium employed, the format used to program the image or information onto the medium, the encoding methods used to represent any interpretation of the stored information and the useful life of the storage medium.
- You use a(n) ……., such as a keyboard or mouse, to input information.(a) processing device(b) storage device(c) input device(d) output device(e) None of these
(c)Explanation: (c) Input device is any peripheral device used to enter data or information into a computer. It include keyboard, mouse,smart cards, microphones, etc.
- ………. allows voice conversations to travel over the Internet.(a) Instant messaging(b) Internet telephony(c) E-mail(d) E-commerce(e) None of these
(c)Explanation: (c) Internet Telephony refers to the technology that converts analog speech (voice) signals into digital signals and routes them through packet-switched networks of the internet. Those signals bypass the traditional circuit switched networks used for telephone calls and thus escape the long-distance phone charges.
- Which of the following is not true about computer files ?(a) Every file has a filename(b) They are collections of data saved to a storage medium(c) A file extension is established by the user to indicate the file’s contents(d) All files contain data(e) None of these
(c)Explanation: (c) A filename extension is a Suffix (seperated from the base file name by a dot or space) to the name of a computer file applied to indicate the encoding (file format) of its contents or usage. eg. .bar, .doc, .htm, etc. .doc represents a document file format.
- A ……… is a large and expensive computer capable of simultaneously processing data for hundreds or thousands of users.(a) mainframe computer(b) handheld computer(c) personal computer(d) tablet computer(e) None of these
(a)Explanation: (a) A mainframe is a large, expensive powerful computer that can handle hundreds or thousands of connected users simultaneously. Mainframes stores tremendous amount of data, instructions and information. Most major corporations user mainframes for business activities. With mainframes, enterprises are able to bill millions of customers, prepare payroll for thousands of employees, manages thousands of items in inventory, etc.
Q10. The …….. is responsible for performing calculations and contains decision-making mechanisms.(a) Memory Unit(b) Central Processing Unit(c) Arithmetic and Logic Unit(d) Output Unit(e) None of these
(c)Explanation: (c) The Arithmetic and logic unit of CPU performs arithmetic calculations such as addition, subtraction, multiplication, division and logical comparisons such as greater than, less than, equal to, etc respectively.
- Which of the following can only have sequential access ?(a) Tape(b) Disk(c) CD-ROM(d) DVD-ROM(e) None of these
(a)Explanation: (a) Magnetic tape is a type of sequential secondary storage medium, now used primarily for storing backups. If the computer needs to read data from the middle of a reel of tape, it must first pass all the tape before the desired piece of data.
- Sending an E-mail is similar to(a) drawing a picture(b) writing a letter(c) talking on the phone(d) sending a package(e) None of these
(b)Explanation: (b) Although the means of communication may contrast between writing a letter versus sending an email, key both convey the same messages. A letter is a handwritten or a printed mode of communication address to a person or organisation and usually send by post. An email, on the other hand, is a modem code of communication, where digital messages are exchanged from an author to one or more than one person.
- Items such as names and addresses are considered(a) input(b) information(c) records(d) data(e) None of these
(d)Explanation: (d) Data is a collection of facts in raw or unorganized form (such as alphabets, numbers or symbols) that refer to or represent conditions, ideas or objects.
- One who designs, writes, tests and maintains computer programs is called a(a) Programmer(b) User(c) Designer(d) Operator(e) None of these
(a)Explanation: (a) A computer programmer is the one who writes, tests, debug and maintain the detailed instructiions called computer programs, that computers must follow a to perform their functions. Programmers also conceive, design and test logical structures for solving problems by computer.
- Which of the following is not true concerning user IDs and passwords ?(a) If your computer asks for a user ID and password, you can create your own(b) When you enter your user ID and password, the computer knows it is you(c) Sometimes you are assigned a user ID and password for security reasons(d) You should share your user ID and password with at least one other person(e) None of these
(d)Explanation: (d) A password is a secret word or strings of characters used for user authentication to prove identity or access approval to gain access to a resource, which sould be kept secret from those not allowed access. It should not be shared with anyone.
- This component is required to process data into information and consists of integrated circuits(a) RAM(b) Hard disk(c) CPU(d) ROM(e) None of these
(c)Explanation: (c) A CPU is a silicon integrated circuit, sometimes called a computer chip. This is because it consists of a square piece of crystallized silicon that is very, very thin. It consists of millions of transistors connected by very thin wires. It carries out the instructions of a computer program by performing the basic arithmatical, logical and input/ output operations of the system, thereby converting data into information.
- Computers connected to a LAN can(a) go on line(b) run faster(c) share information and/or share peripheral equipment(d) E-mail(e) None of these
(c)Explanation: (c) A local area network (LAN) supplies networking capability to a group of computers in close proximity to each other such as in an office building, a school, or a home. A LAN is useful for sharing resources like files, printers, application programes, etc.
- Which is the smallest of the following computers ?(a) Laptop(b) Notebook(c) Desktop(d) Workstation(e) None of these
(b)Explanation: (b) A notebook is an extremely lightweight personal computer. They typically weigh less than six pounds and are small enough to fit easily in a briefcase. However, a laptop is a small portable computer small enough that it can sit on your lap. They are somewhat larger in size than notebooks, in both thickness and weight.
- What is a modem connected to ?(a) motherboard(b) processor(c) printer(d) phone line(e) None of these
(d)Explanation: (d) A modem (modulator-demodulator) is an electronic device that allows computer to communicate over telephone lines or cable-TV cables. It converts the digital signals into analog signals & vice versa.
Q20. Secondary storage(a) does not use magnetic media(b) does not require constant power(c) consists of four main types of devices(d) does not store information for later retrieval(e) None of these
(b)Explanation: (b) Secondary storage device (also called external or auxilliary storage) is a storage medium that holds the data and information until it is deleted by the user regardless if the computer has power. It is non-volatile in nature. eg. Floppy disk, Hard disk, CD, DVD, etc.
- Computer …….. is whatever is typed, submitted, or transmitted to a computer system(a) output(b) input(c) data(d) circuitry(e) None of these
(b)Explanation: (b) Computer input refers to any information or data that’s entered or sent to the computer to be processed. Input is sent to the computer using an input device such as keyboard or mouse.
- An error is also known as(a) debug(b) bug(c) cursor(d) icon(e) None of these
(b)Explanation: (b) A software bug is an error, flaw, failure or fault in a computer program or system that promay duces an incorrect or unexpected result or causes it to behave in unintended ways.
- What is output ?(a) What the user gives to the processor(b) What the processor takes from the user(c) What the processor gets from the user(d) What the processor gives to the user(e) None of these
(d)Explanation: (d) Any information that has been processed and comes from a computer or computer device is considered output.When someone is viewing output, they’re seeing it on an output device such as a computer monitor or a hard copy print out.
- A menu contains a list of(a) data(b) commands(c) objects(d) reports(e) None of these &
(b)Explanation: (b) A menu is a set of commands or options presented to the user of a computer application to help the user find information or execute a program function. Menus are common in graphical user interface (GUI) such as windows or MAC OS.
- Which of the following groups consist of only input devices ?(a) Mouse, Keyboard, Printer(b) Mouse, Keyboard, Monitor(c) Mouse, Keyboard, Plotter(d) Mouse, Keyboard, Scanner(e) None of these
(d)Explanation: (d) Mouse, Keyboard, Scanner are input devices that helps the user in entering data in form of numbers letters, symbols, image, commands into the computer for further processing. • Monitor, printer and plotter are output devices that disply the result of processing (output) to the user.
- A device that connects to a network without the use of cables is said to be(a) centralised(b) distributed(c) open source(d) wireless(e) None of these
(d)Explanation: (d) A wirelers device can refer to any kind of communication equipment that doesn’t require a physical wire for relaying information to another device. Wireless communication travel over the air via electromagnetic waves (radio frequencies, infrared, satellite, etc).
- A web site address is a unique name that identifies a specific ………. on the web.(a) web site(b) web browser(c) PDA(d) link(e) None of these
(a)Explanation: (a) Every website has a unique address to identify it on World Wide Web. This address is called as web address or Uniform Resource Locator (URL). Like your home address, URL also contains different parts, Domain name in URL is the unique address that identifies the location of the website. eg. http://www. example .com. here, example .com is domain name; http://. is the protocol used to access this website and WWW is a sub domain.
- …….. is processed by the computer into information.(a) processor(b) numbers(c) input(d) data(e) None of these
(b)Explanation: (b) Data is raw, unorganized facts that needs to be processed. Data can be something simple or seemingly random and useless until it is organised. When data is processed, organized, structured, or presented in a given context so as to make it useful, it is called information.
- Unsolicited commercial email is commonly known as(a) junk(b) spam(c) hoaxes(d) hypertext(e) None of these
(b)Explanation: (b) Email spam (or junk email or unsolicited bulk message) is the use of electronic messaging systems to send unsolicited bulk messages, especially advertising, indiscriminately. It involves flooding the internet with the many copies of the same message, in an attempt to force the message on people who would not otherwise choose to receive it.
- Which process checks to ensure the components of the computer are operating and connected properly?(a) Processing(b) Booting(c) Saving(d) Editing(e) None of these
(b)Explanation: (b) When a computer is started there is an operation which is performed automatically by the computer which is called as Booting. In booting, system checks all the hardware and softwares that are attached with or installed on the system and also loads all the files that are needed for running the system.
- The name a user assigns to a document is called a(n) :(a) program(b) filename(c) record(d) data(e) None of these
(b)Explanation: (b) A filename is a name given to a computer file in order to distinguish it from other files. It may contain extension that indicates the type of file.
- Where is the disk put in a computer ?(a) in the hard drive(b) in the modem(c) into the CPU(d) in the disk drive(e) None of these
(d)Explanation: (d)A disk drive refers to a computer peripheral which uses fixed or removable magnetic or optical disks for data storage and retrieval. It reads data form and writes data onto magnetic or optical disks. There are different types of disk drives for different types of disks. eg. hard disk drive (HDD) for hard disks, Floppy disk drive (FDD) for floppy disks, optical drives for optical disks.
- Most mail programs automatically complete the following two parts in an e-mail(a) From : and Date:(b) From : and Body :(c) From : and To :(d) From: and Subject:(e) None of these
(a)Explanation: (a) In an email, the body (context text) is always preceded by header lines that identify particular routing information of the message, including the sender, recipient, date and subject.Although, FROM, To, and DATE headers are automatically completed by mail transfer agent (MTA). FROM: indicates sender’s name and email address and DATE: indicates sent date/time of the email.
- The Internet allows you to(a) view web pages(b) send electronic mail(c) connect to servers all around the world(d) All of these(e) None of these
(d)Explanation: (d) The Internet is a global network connecting millions of computers. It is a network of networks that consists of millions of private, public, academic, business and government networks, of local to global scope, that are linked by a broad array of electronic and optical networking technologies. With the help of Internet, user can view web pages on World Wide Web. Also, it facilitates communication around the globe via applications like chat, email, video-conferencing, Internet telephony, etc.
- Editing a document consists of reading through the document you’ve created, then(a) printing it(b) correcting your errors(c) saving it(d) deleting it(e) None of these
(b)Explanation: (b) Editing is the process of reading through the already created document for the purpose of making it more professional in look and appearance by formatting it. Also, it is done to correct errors. For this, grammar & spelling check, auto-correct, find and replace, etc features can be used. Editing is done before the final copy of the document is saved or a final print out is taken.
- In addition to the basic typing keys, desktop and notebook computer keyboards include a(n) …… keypad to efficiently move the screen-based insertion point.(a) navigation(b) editing(c) locked(d) docked(e) None of these
(a)Explanation: (a) Navigation keypad comprises of a variety of keys which move the cursor to different positions on the screen. They are used for moving around in documents or webpages and editing text. They include arrow keys, HOME, END, PAGE UP, PAGE DOWN, DELETE and INSERT. For eg. Arrow keys are programmed to move the cursor in a specified direction-left, right, up or down.
- File …….. shrinks the size of a file so it requires less storage space.(a) synthesizing(b) scanning(c) defragmenting(d) compression(e) None of these
(d)Explanation: (d) File compression is the reduction in size of data in order to save space on storage medium or transmission time. Compression software allows the user to take many files and compress them into one file, which is smaller than the combined size of the originals. The compressed files make downloading faster, easier and allows more data to be stored on a removable media. Common compressed file extensions are .ZIP, .RAR, .ARJ, etc.
- ctrl, shift and alt are called ……. keys.(a) function(b) adjustment(c) modifier(d) alphanumeric(e) None of these
(c)Explanation: (c) A modifier key is a special key on computer keyboard that temporarily modifies the normal action of another key when pressed together. Alt, Shift, Ctrl are modifier keys. • Shift- gives capital letters or to access the punctuation and other symbols on the number keys and other keys. eg. Shift + A gives output capital letter A. • Ctrl- Used in combination with other keys as shortcuts for menu commands, eg. Ctrl + S activates the save command. • Alt- Works as menu - command shortcuts. eg. Alt + F4 closes the active window on the desktop.
- A personal computer is designed to meet the computing needs of a(n)(a) department(b) individual(c) company(d) city(e) None of these
(b)Explanation: (b) A personal computer is a microcomputer designed for use by only one person at a time. It is based on a microprocessor technology that enables manufacturers to put an entire CPU on one chip. Business use PC for word processing, accounting, desktop publishing, and for running spreadsheet and database management applications. At home, the most popular use for PC is for playing games.
- An e-mail address typically consists of a user ID followed by the …….. sign and the name of the e-mail server that manages the user’s electronic post office box.(a) #(b) @(c) &(d) «(e) None of these
(b)Explanation: (b) The general format of an email address is example @ computer .com. It consists of two parts: the part before the @ sign is the locate part of the address, often the username of the recipient (example) and the part after the @ sign is a domain name to which the email message will be sent (computer.com)
- When you turn on the computer, the boot routine will perform this test —(a) disk drive test(b) RAM test(c) memory test(d) power-on self-test(e) None of these
(d)Explanation: (d) The first thing that a computer does when it boots is to perform what is called the Power on Self Test (or POST). The POST is a built- in diagnostic program that checks your hardware to ensure that everything is present and functioning properly, before the BIOS begins the actual boot. It later continues with additional tests (such as the memory test that you see printed on the screen) as the boot process is proceedings.
- A compiler translates a program written in a high-level language into —(a) An algorithm(b) Machine language(c) A debugged program(d) Java(e) None of these
(b)Explanation: (b) A compiler is a software program that translates a source program written in some high level language (such as C, C++, Java) into machine code for some computer architechture (such as Intel Pentium architecture). The generated machine code can be later executed many times against different data each time.
- A directory within a directory is called —(a) Junior Directory(b) Mini Directory(c) Part Directory(d) Sub Directory(e) None of these
(d)Explanation: (d) A subdirectory is a directory within answer directory or a folder within a folder. All directories can become a subdirectory except for the master directory, which is typically referred to as the root directory or the parent directory.
- The primary purpose of software is to turn data into —(a) information (b) Web sites(c) programs(d) objects(e) None of these
(a)Explanation: (a) The primary purpose of the software is to turn raw data into meaningful information after processing. For example- raw data such as number of hours an employee has worked in a month and his pay rate, when entered into the payroll software, gives his salary for that month as an output.
- You can keep your personal files/folders in _____.(a) My Documents(b) My folder(c) My Files(d) My Text(e) None of these
(a)Explanation: (a) My Documents folder is a component of the user profile that is used as a unified location for storing personal data. By default, My Documents folder is a folder in the user’s profile that is used as a default storage location for saved documents.
- The stimulataneous processing of two or more programs by multiple processors is—(a) multitasking(b) multiprogramming(c) time-sharing(d) multiprocessing(e) None of these
(d)Explanation: (d) Multiprocessing, in computing, is a mode of operation in which two are more processors in a computer simultaneously process two or more different portions of the same program (set of instructions). Multiprocessing is typically carried out by two or more microprocessors, each of which is in effect a CPU on a single tiny chip. Super computers typically combine thousands of such microprocessors to interpret and execute institutions.
- All the deleted files go to —(a) Task Bar(b) Recycle Bin(c) Tool Bar(d) My Computer(e) None of these
(b)Explanation: (b) Recycle bin is a waste basket icon on windows desktop that works as a location or Directory or deleted files or folders. All deleted files & folders are temporarily stored here before final deletion.
- A _____ contains specific rules and words that express the logical steps of an algorithm(a) syntax(b) programming language(c) programming structure(d) logic chart(e) None of these
(b)Explanation: (b) A programming language is a formal language designed to communicate instructions to a machine, particularly a computer. It can be used to create programs that control the behaviour of a machine and/or express algorithms precisely. The description of a programming language is usually split into the two components of syntax (form) and semantics (meaning).
- Hardware includes ———(a) sets of instructions that a computer runs or executes(b) all devices used to input data into a computer(c) the computer and all the devices connected to it that are used to input and output data (d) all devices involved in processing information including the central processing unit, memory, and storage(e) None of these
(c)Explanation: (c) The hardware, in computer, refers to the physical equipment required to create, use, manipulate and store electronic data. It comprises of the system unit (the core architechture of the computer system that house primary components of a computer like CPU, memory, motherboard, etc); Input devices (eg. Keyboard, Mouse,etc); Output devices (eg. Printer, Screen, etc); and storage devices (eg. Hard disk, Floppy disk, USB,etc).
- A _______ is a unique name that you give to a file of information(a) folder(b) device letter(c) filename(d) file name extension(e) None of these
(c)Explanation: (c) A filename is the name used to uniquely identify a computer file stored in a file system. The filename usually consists of an extension that indicates what type of file it is.
- Softcopy is the intangible output, so then what is hardcopy ?(a) The printed parts of the computer(b) The physical parts of the computer(c) The printed output(d) The physical output devices(e) None of these
(c)Explanation: (c) A hard copy is a physical reproduction or representation of the data or information from a computer. Such as printed page or photograph. A hard copy is so-called because it exists as a physical object.
- _____ is the process of carrying out commands.(a) Storing(b) Fetching(c) Executing(d) Decoding(e) None of these
(c)Explanation: (c) Execution is the part of the instruction cycle when data processing actually takes place. The instruction is carried out upon the data (executed). That is, when the command is executed, the CPU carried out the instructions in order by converting them into macrocodes. Also, the result of the processing is stored in memory by CPU.
- The main function of the ALU is to —(a) store data and information for future use(b) perform arithmetic and logical operations(c) control computer output, such as printing(d) monitor all computer activities(e) None of these
(b)Explanation: (b) The main function of the Arithmetic Logic Unit (ALU), present in CPU, is to perform arithmetic operations like addition, subtraction, multiplication, division and logical comparisons such as greater than, less than, equal to, AND, NAND, etc.
- Computers use the ____ number system to store data and perform calculations —(a) octal(b) binary(c) decimal(d) hexadecimal(e) None of these
(b)Explanation: (b) Binary numbers are closely related to digital electronics. With digital electronics, a ‘1’ means that current is present and a ‘0’ means it is not present. The different parts of a computer communicate through pulses of current (1s and 0s). Computers can calculate complex equations and perform complex calculations. Calculating using only 1s and 0 s is called Binary system. A computer can process only 1s and 0 s.
- The secret code that restricts entry to some programs —(a) passport(b) password(c) entry-code(d) access-code(e) None of these
(b) Explanation: (b) A password is a secret word or string of characters used for user authentication to prove identify or access approval to gain access to a resource (eg. a software, website on World Wide Web, etc); which should be kept secret from those not allowed access.
- What is output?(a) What the user gives to the processor(b) What the processor takes from the user(c) What the processor gets from the user(d) What the processor gives to the user(e) None of these
(d)Explanation: (d) Any information that has been processed and comes from a computer or computer device is considered output. When someone is viewing output, they’re seeing it on an output device such as monitor or a hard copy print out, or sound from speakers.
- An error in a computer programme—(a) Power Failure(b) Crash(c) Bug(d) Virus(e) None of these &
(c)Explanation: (c) A software bug is an error, flaw, failure or fault in a computer program that produces an incorrect or unexpected result or causes it to behave in unintended ways.
- computer systems are comprised of —(a) hardware, programs, information, people, and procedures(b) hardware, programs, processors, procedures, and people(c) hardware, programs, information, people, and networks(d) hardware, software, procedures, data and people(e) None of these
(d)Explanation: (d) Computer systems comprises of 5 basic parts: • People- end user of the computer system. • Procedure- are rules & guidelines to follow when using software, hardware and data. Typically, documented in manuals. • Software (programs)- provides step-by-step instructions to control the computer to convert data into information. • Hardware- Consists of physical equipments which is controlled by software and process data into information. • Data: Consist of unprocessed facts. ®Connectivity is an additional part to computer systems that allows computers to connect and share information.
- A complete electronic circuit with transistors and other electronic components on a small silicon chip is called a(n) —(a) CPU(b) workstation(c) magnetic disk(d) integrated circuit(e) None of these
(d)Explanation: (d) An Integrated Circuit (IC) is a small electronic device made out of a semiconductor material. IC, sometimes called a chip or Microchip, is a semiconductor wafer on which thousands or millions of tiny resistors, capacitors and transistors are fabricated. ICs can be used for variety of devices such as micro processors, audio & video equipment and automobiles.
- A(n) _______ is a program that makes the Computer easier to use(a) application(b) utility(c) operating system(d) network(e) None of these
(b)Explanation: (b) A utility program allows a user to perform maintainence type tasks usually related to managing a computer, its devices or its programs. It makes computer easier to use. For eg. Windows utility called Disk Defragmenter locates and eliminates unnecessary file fragments and rearranges files and unused disk space to optimize computer operations.
- The term bit is short for —(a) binary language (b) megabyte(c) binary digit(d) binary number(e) None of these
(c)Explanation: (c) A bit (short for binary digit) is the smallest unit of data in a computer. A bit has a single binary value, either 0 or 1.
- What is backup ?(a) Protecting data by copying it from the original source to a different destination(b) Adding more components to your network(c) Filtering old data from the new data(d) Accessing data on tape(e) None of these
(a)Explanation: (a) A back up refers to the copy and archive of computer data to a different location so that it may be used to restore the original data after a data loss event, eg. equipment failure or catastrope.
- What menu selected to print ?(a) Special(b) Edit(c) File(d) Tools(e) None of these
(c)Explanation: (c) Print option is available under file menu in most of the applications of windows. On clicking the Print option, a Print dialog box appears. A user can change print settings according to his/her choice and then finally select the Print button.
- A set of instructions telling the computer what to do is called(a) instructor(b) mentor(c) compiler(d) program(e) None of these
(d)Explanation: (d) A computer program is a sequence of instructions, written to perform a specified task with a computer. A computer requires programs to function, typically executing the program’s instructions in a central processor. The series of instructions when executed, causes the computer to behave in a predetermined manner.
- The person who writes and tests computer programs is called a(a) computer scientist(b) programmer(c) software engineer(d) project developer(e) None of these
(b)Explanation: (b) A computer programmer write code or instructions to make the computer do specific tasks. These instructions are called programs. Before writing the code, the programmer gets the algorithm from a software engineer. To write those instructions, programmers use programming languages such as C, C++, Java, Cobol, etc.
- An operating system that can do multitasking means that —(a) several programs can be operated concurrently(b) the operating system can divide up work between several CPUs(c) multiple people can use the computer concurrently(d) All of the above(e) None of these
(a)Explanation: (a) Multitasking refers to the ability to execute more than one task (or program) at the same time. In multitasking, only one CPU is involved, but it switches from one program to another so quickly that it gives the appearance of executing all of the programs at the same time.
- In page preview mode—(a) You can only see the page you are currently working (b) You can see all pages of your document(c) You can only see pages that do not contain graphics(d) You can only see the title page of your document(e) None of these
(b)Explanation: (b) A page preview is a special mode of modern programs that provide an accurate view of what a full printed page would look like. It enables the user to view all pages of his/her document beforing taking actual print out.
- An application program has which one of the following functions ?(a) It controls the input/output and storage functions of the computer system(b) It specifies the informationprocessing procedures required by a particular information- processing job.(c) It provides various support services for the computer system(d) It suprevises the operations of the CPU(e) None of these
(c)Explanation: (c) An application program refers to programs designed to make users more productive and/or assist them with personal tasks. eg. Word processing software, spreadsheet software, database software, etc. Application programs use the services of the computer’s operating system and other supporting programs.
- Specialised programs that assist users in locating information on the Web are called —(a) search engines(b) information engines(c) web browsers(d) resource locators(e) None of these
(a)Explanation: (a) A search engine is a webbased tool that enables users to locate information on the world wide web. eg. Google, Yahoo , MSN etc. search engine utilize automated software applications (referred to as robots, bots or spiders) that travel along the web, following links from page to page, site to site. The information gathered by the spiders is used to create a searchable index of the web.
- A saved document is referred to as a ___.(a) word(b) file(c) folder(d) project(e) None of these
(b)Explanation: (b) A file in a computer is a collection of information stored/ saved electronically and treated as a unit by a computer. Every file must have its own distinctive name.
- To move to the beginning of a line of text, press the _____ key.(a) A(b) PageUp(c) Home(d) Enter(e) None of these
(c)Explanation: (c) The home key moves the cursor to the top left corner of the screen (i.e, beginning of the document) or to the beginning of the line of a document.
- A collection of interrelated records is called a —(a) management information system(b) utility file(c) database(d) spreadsheet(e) None of these
(c)Explanation: (c) A database is an integrated collection of logically related records or files. A database consolidates records previously stored in seperate files into a common pool of data records that provide data for many applications. The data is managed by system software called database management system (DBMS).
- With a CD you can —(a) Write(b) Read (c) Read and Write(d) Either Read or Write(e) None of these
(c)Explanation: (c) A compact Disc (CD) is a small, portable round medium made of moulded polymer for electronically recording, storing, and playing back audio, video, text and other information in digital form. Different types of CD include CD-ROM, CD-R, CDRW, DVD, etc.
- What is the default file extension for all Word documents ?(a) TXT(b) WRD(c) DOC(d) FIL(e) None of these
(c)Explanation: (c) DOC is a document file format used by Microsoft Word, also used with most word processing software, including open office. DOC stands for Document file. A DOC file can contain formatted text, images, tables, graphs, charts, page formatting and print settings.
- The quickest and easiest way in Word, to locate a particular word or phrase in a document is to use the ____ command.(a) Find(b) Replace(c) Lookup(d) Search(e) None of these
“(a)Explanation: (a) When you are working with longer documents, it can be difficult and time consuming to locate a specific word or phrase. Word can automatically search your document using the ““Find”” feature. This makes it easy to find the word or phrase you are looking for without having to scan long documents.”
- The contents of _____ are lost when the computer turns off.(a) input(b) storage(c) output(d) memory(e) None of these
(d)Explanation: (d) A computer’s main memory (or random access memory) is the memory used to store data and programs on a temporary basis. The RAM is compared to shortterm or volatile memory, as it stores applications and information that is actively used while the system is on.
- For creating a document, you use ____ command at File Menu.(a) Close(b) Open(c) New(d) Save(e) None of these
(c)Explanation: (c) • New command under file menu creates/opens a new, empty, text window (document) or spreadsheet. • The open command opens an existing file into a new window. • Close command closes the current window. • Save command saves the current window into a file. If the window is already associated with a file, the contents are saved to that file.
- Reusable optical storage will typically have the acronym _____.(a) DVD(b) CD(c) ROM(d) RW(e) None of these
(d)Explanation: (d) Reusuable optical storage will typically have the acronym RW. For example, CD-RW, DVD-RW, etc. RW stands for re-writtable. This means rewrittable storage medium can be re-written or dozen or many times, the contents can be copied, deleted and modified as necessary.
- The background of any Word document— (a) Is the colour you preset under the Options menu(b) Is always white colour(c) Is always the same for the entire document(d) Can have any colour you choose(e) None of these
(d)Explanation: (d) By default, the background color of a MS-Word document is white. However, a user can change the color of his/her own choice. To do this, open word document and choose page layout on the Ribbon, then select page color to select the background color the user wants.
“80. The term ““user interface”” refers to —(a) how the operating system responds to user commands(b) what the user sees on the screen and how they can interact with it(c) the means by which the user interacts with the peripheral devices on the computer(d) the monitor that is available for the computer(e) None of these”
(b)Explanation: (b) User interface refers to the visual part of computer application or operating system through which a user interacts with a computer or a software. It determines how commands are given to the computer or the program and how information is displayed on the screen. Three main types of user interfaces are- command language, Menus and Graphical user interface.
- To save an existing file with a new name or to a new location, you should use the ______ command.(a) Save and replace(b) Save(c) Save as(d) New file(e) None of these
(c)Explanation: (c) When you save a document (or file) for the first time, you will need to mention a name for that document. To do that go to File > Save AS. A file name is used to uniquely identify a computer file stored in a file system.
- The most common input devices are the ____ and the ____.(a) scanner, monitor(b) microphone , printer(c) digital camera, speakers(d) keyboard, mouse(e) None of these
(d)Explanation: (d) The most common input devices are keyboard and mouse which helps in feeding data into the computer.
- The _______ key and the _____ key can be used in the combination with other keys to perform shortcuts and special tasks.(a) Function, toggle(b) Control, Alt(c) Delete, insert(d) Caps Lock, Num Lock(e) None of these
(b)Explanation: (b) Alt, Ctrl, and Shift keys are modifier keys. Modifier keys temporarily modifies the normal action of another key when pressed together. They are often used with other keys to perform computer keyboard shortcuts. eg. Ctrl + C is the shortcut to copy text. Alt + F4 in Microsoft windows will close the programe in the active window.
- Hard disk drives are considered ________ storage .(a) Nonvolatile(b) Flash(c) Temporary(d) Nonpermanent(e) None of these
(a)Explanation: (a) A hard disk drive (HDD) is a non-volatile storage device for digital data. That is, it is the computer’s main storage media device that permanently stores all data on the computer.
- ________ is when the more power hungry components, such as the monitor and hard drive, are put in idle:(a) Power down(b) Hibernation(c) Standby mode(d) The shutdown procedure(e) None of these
(c)Explanation: (c) Standby (or sleep) mode is a mode the computer, monitor or other devices enters when idle for too long. This mode helps conserve power when a computer or computer device is not in use without having to sacrifice the time it would take to turn off and on the computer.
- A(n) _________ is a combination of hardware and software that facilitates the sharing of information between computing devices.(a) Peripheral(b) Network(c) Expansion board(d) Digital device(e) None of these
(b)Explanation: (b) A computer network is a group of computers and other hardware devices that are linked together through communication channels to faci l itate communication and resourcesharing among a wide range of users.
- In a database ________ fields store numbers used to perform calculation .(a) Key(b) Next(c) Alphanumeric(d) Numeric(e) None of these
(d)Explanation: (d) In a database, you use data types to specify the type of data each field can capture. you can enter numbers into the number (or numeric) field and then average , sum or perform other calculations with the numbers eg. you can assign a Test Score field a data type of number.
- Something which has easily - understood instructions is said to be__________.(a) Information(b) User friendly(c) Word processing(d) Icon(e) None of these
(b)Explanation: (b) In computer, user-friendly refers to something which is easy to learn, understand and deal with. eg. menu-driven programs are considered more userfriendly than command driven systems. Graphical user interfaces are also considered user friendly. They all make it easier for novices to use a computer.
- The portion of the CPU that coordinates the activities of all the other computer components is the(a) Coordination board(b) Motherboard(c) Control unit(d) Arithmetic logic unit(e) None of these
“(c)Explanation: (c) The control unit is the component of the processor that directs and co-ordinates most of the operations in the computer. It is the circuitry that controls the flow of information through the processor and co-ordinates the activities of the other units within it. In a way, it is the ““brain within it brain””, as it controls what happens inside the processor, which in turn controls the rest of the PC.”
- Which type of software manages the computers procesess, functioning as an interface, connecting the user, the application software and the hardware?(a) Utility program(b) System software (c) Translator program(d) Operating system(e) None of these
(d)Explanation: (d) Operating system is a software that controls the operation of a computer, directs the input & output of data, keep track of files and controls the processing of computer programs. Its role include managing the functioning of the computer hardware, running the application programs, serving as an interface between the computer and the user and allocating computer resources to various functions.
- A _________ is approximately one billion bytes.(a) bit(b) kilobytes(c) gigabyte(d) megabyte(e) None of these
(c)Explanation: (c) A gigabyte (GB) is a measure of computer data storage capacity which is equal to 1,024 megabytes (or 230 bytes). It is approximately equal to one billion bytes.
- ___________ are devices used to transmit data over telecommunications lines.(a) Drives bays(b) Drives(c) Modems(d) Platforms(e) None of these
(c)Explanation: 14 (c) A modem (modulatordemodulator) is an electronic device that makes possible the transmission of data to or from a computer via telephone or other communication lines.
- All of the following terms are associated with spread sheet software except.(a) cell(b) worksheet(c) formula(d) virus detection(e) None of these
(d)Explanation: (d) A worksheet is an arrangement of rows and columns, making up cells into which various types of data and formulas can be entered. Formulas are used to perform calculations in Excel.
- The term bit is short for —-(a) Binary language(b) Megabyte(c) Binary digit(d) Binary number(e) None of these
(c)Explanation: (c) A bit (short for binary digit) is the smallest unit of data in a computer. A bit has a single binary value, either 0 or 1.
- Which of the following statements is true concerning ?(a) Accessing data from RAM is a slower than accessing data from virtual memory.(b) Virtual memory is the space on the hard drive where the operating system begins to store data when it becomes memory-bound(c) When it is using virtual memory, the operating system builds a file called the RAM file(d) If a computer is memory - bound, adding more RAM will not solve the problem(e) None of these
(b)Explanation: (b) Virtual memory refers to the space on the hard drive that the operating system store data to, if you don’t have enough random access memory (RAM) to hold all of the programs you’re currently trying to run.
- Servers are computers that provide resources to the other computers connected to a ____(a) Mainframe(b) Network(c) Super computer(d) Client (e) None of these
(b)Explanation: (1 )A network server is a computer designed to process requests and deliver data to other computers over a local network or the Internet.
- ________is a form of permanent memory that holds all the instructions the computer needs to start up does not get erased when the power is turned off. &(a) The CPU(b) The Network Interface Card (NIC)(c) RAM(d) ROM(e) None of these
(d)Explanation: (d) ROM (read only memory) is a computer memory on which data has been pre recorded. Once data has been written onto a ROM chip, it cannot be removed and can only be read. It retains the contents even when the computer is turned off. It contains programs such as the program that boots the computer.
- Which of the following terms is just the connection of networks that can be joined together?(a) Internet(b) Virtual private network(c) Intranet(d) Extranet(e)None of these
(a)Explanation: (a) The internet is a global system of inter connected computer networks that use the standard internet protocol suite (TCP/IP) to serve several billion users worldwide.
- Computers gather data, which means that they allow users to _______ data.(a) Input(b) Present(c) Output(d) Store(e) None of these
(a)Explanation: (a) Input allows user to enter or feed data into a computer through input devices such as keyboard, mouse, scanner, etc.
- A repair for a known software bug, usually available at no charge on the internet, is called a (n) ____.(a) patch(b) version(c) tutorial(d) FAQ(e) None of these
(a)Explanation: (a) A software patch is a piece of software code that can be applied after the software program has been installed to fix a specific issue with that program. Patches are available as downloads over the internet, free of cost.Q101. Which one of the following is a key function of a firewall?(a) Deleting(b) Monitoring(c) Copying(d) Moving(e) None of these (b)Explanation: (b) A firewall is a software or hardware-based network security system that controls the incoming and outgoing network traffic by analyzing the data packets and determining whether they should be allowed through or not, based on a rule set.
- When you install a new program on your computer, it is typically added to the ____ menu?(a) Select Programs(b) All Programs(c) Start Programs(d) Desktop Programs(e) None of these
(b)Explanation: (b) Every program that’s currently installed on your computer is listed in All programs menu. On the start menu. Also, when you install new programs, they get added to the All programs list.
- Which of the following is the communication protocol that sets the standard used by every computer that accesses Web-based information?(a) DML(b) XML(c) HTTP(d) TML(e) None of these
(c)Explanation: (c) HTTP (hyper text transfer protocol) is a set of standards that allow users of the world wide web to exchange information found on web pages. It provides a standard for web browsers and servers to communicate.
- After a user has saved and deleted many files, many scattered areas of stored data remain that are too small to be used efficiency, causing(a) Turmoil(b) Disorder(c) Disarray(d) Fragmentation(e) None of these
(d)Explanation: (d) Fragmentation occurs when a process which are loaded or removed from memory. The free memory space is broken into little pieces, such type of pieces may or may not be of any use to be allocated individually to any process. This may give rise to memory wastage or fragmentation. So, it is a phenomenon in which storage space is used inefficiently, reducing capacity & often performance.
- The standard protocol of the Internet is —-(a) Java(b) TCP/IP(c) HTML(d) Flash(e) None of these
(b)Explanation: (b) TCP/IP (Transmission Control Protocol/ Internet Protocol) is the suite of communication protocols used to connect hosts on the internet. It is the defacto standard for transmitting data over networks.
- Which of the following are all considered advantages of e-mail?(a) Printable, global and expensive(b) Convenience, speed of delivery, generality and reliability(c) Global, convenience and Microsoft owned(d) Slow delivery, reliable, global and inexpensive (e) None of these
(b)Explanation: (b) Advantages of email include:- • Speed of delivery : Email are fast. They are delivered at once around the world. • Convenience : Emails are easy to use. You can organize your daily correspondence, send & receive electronic messages and save them on computers. Also, you can read emails at your own convenient time. • Reliability : Transmission is secure and reliable. Email is private. Often telephone and fax messages are not. • Generality : Same message can be sent to many recipients. Also, you can send letters, notes, files, data or reports all using the same techniques.
- Which is of the following is NOT a famous operating system?(a) Mac OS X(b) Windows vista(c) Linux(d) Sun OS(e) Virtual Box
(e)Explanation: (e) A virtual box is a software virtualization package that install on an operating system as an application. Virtual box allows additional operating system to be installed on it, as a Guest OS, and run in a virtual environment.
- Which of the following is NOT hardware of a computer?(a) Key board(b) Monitor(c) Windows(d) Central Processing Unit(e) None of these
(c)Explanation: (c) Microsoft windows is a group of operating systems manufactured by Microsoft.
- e-marketing is same as ____(a) Digital marketing(b) Virtual marketing(c) Real time marketing(d) All of these(e) None of these
(a)Explanation: (a) Online marketing/internet marketing/E-marketing is the marketing and promotion of products or services over the internet. Digital marketing is marketing that makes use of electronic devices such as computers, tablets, smartphones, cellphones, digital billboards and game consoles to engage with consumers and business partners. E-marketing is a major component of digital marketing. It has a common base, it is the stream of advertising you choose.
- ______ are a type of inexpensive digital camera that remains tethered to a computer and used for video conferencing, video chatting and live Web broadcast.(a) Webpics(b) Webcams(c) Browser cams(d) Browserpics(e) None of these
(b)Explanation: (b) A web camera (or web cam) is a real time camera whose images can be accessed using the world wide web, instant messaging or a PC video calling application. It delivers images to a web server, either continuously or at regular intervals.
- A _____ pre-designed document that already has coordinating fonts, a layout, and a background.(a) Model(b) Guide(c) Ruler(d) Template(e) None of these
(d)Explanation: (d) A template is a tool for enforcing a standard layout and look and feel across multiple pages or within content regions. When you change a template, any pages or regions that are based on that template are automatically changed as well . It is something which is pre-formatted.
Q112. A ____ is a named set of characters that have the same characteristics.(a) Type style(b) Type face(c) Font(d) Pico(e) None of these
(c)Explanation: (c) Fonts are designed for a set of characters. It is a graphical representation of text that may include a different typeface, point size, weight or design. eg. Times Roman is a typeface that defines the shape of each character. Within Times Roman, there are many fonts to choose from different sizes, italic, bold, etc.
- Hardware components are :(a) Fully functional without computer software.(b) Physical parts of a computer system.(c) Impossible to add on after the initial purchase of a computer.(d) The intangible parts of a computer system(e) None of these
(b)Explanation: (b) Hardware components of a computer system are physical or tangible parts that can be see or touched. eg. monitor, CPU, printer, etc.
- In a relational database, tables are logically linked to each other by a :(a) Hyperlink.(b) Key.(c) Field type.(d) field size(e) None of these
(b)Explanation: (b) Table can contain primary keys as well as foreign keys. Primary keys serve to differentiate records from one another, they can be individual attribute or a combination of attributes. Foreign keys relate or link tables in the database to one another and generally define the parent-child relationship between tables. A foreign key in one table may be primary key in another.
- Any computer parts that you can actually touch are considered to be :(a) Software.(b) Hardware.(c) Systems.(d) Platforms(e) None of these
(b)Explanation: (b) The computer hardware refers to the physical parts or components of a computer system that can be seen or touched. They can be classified into input devices, output devices and storage devices.
- Something which has easily-understood instructions is said to be____(a) Information(b) User friendly(c) Word processing(d) Icon(e) None of these
(b)
- A ____ can make it easier to play games.(a) Joystick(b) Mouse(c) Keyboard(d) Pen(e) None of these
(a)Explanation: (a) In computers a joystick is a cursor control device used in computer games and assistive technology. It allows an individual to move an object in a game such as navigating a plane in a flight simulator.
- A device operating at the physical layer is called a(a) Router(b) Bridge(c) Repeater (d) All of the above(e) None of these
(c)Explanation: (c) A repeater is an electronic device that receives a signal and retransmits it at a higher level or higher power or onto the other side of an obstruction, so that signal can cover longer distances. Because repeaters work with the actual physical signal and do not attempt to interpret the data transmitted, they operate on the physical layer, being the first layer of the DSI model.
- A complete electronic circuit with transistors and other electronic components on a small silicon chip is called a (n).(a) CPU(b) Workstation(c) Magnetic disk(d) Integrated circuit(e) None of these
(d)Explanation: (d) An Integrated circuit (IC), also called a chip or microchip, is a semiconductor wafer on which thousands or millions of tiny resistors, capacitors and transistors are fabricated.
- Which element of a Word document can be displayed in colour?(a) Only text(b) Only graphics(c) All elements(d) All elements, but only if you have a colour printer(e) None of these
(c)Explanation: (c) All elements whether text or graphics can be displayed in a color. The user can choose color of his/her choice.
- In a computer most processing takes place in _____(a) RAM(b) Memory(c) CPU(d) Motherboard(e) ALU
(c)Explanation: (c) The CPU (Central Processing Unit) is the brain of the computer that contains the circuitry necessary to interpret & execute program instructions. It comprises ACU (to perform arithmetic calculations such as addition, multiplication, etc and logical comparisons such as EQUAL To, NOT, LESS THAN, etc.) and CU (which co-ordinates the components of a computer system). Most of the processing in a computer is done by CPU.
- Peripheral devices such as printers and monitors are considered to be _____(a) software(b) hardware(c) data(d) information(e) source code
(b)Explanation: (b) A peripheral device is one which is conected to a host computer but is not a part of the core computer architecture. They are the hardware items for your computer like mouse, keyboard, printer, monitor, etc. They are connected with a computer through several I/O interfaces such as communications (com), universal serial bus (USB) and serial parts.
- The main system board of a computer is called the ____(a) motherboard(b) integrated circuit(c) processor(d) microchip(e) drive board
(a)Explanation: (a) A motherboard (also called mainboard/ system board/logic board) is the main circuit board in a computer. A motherboard provides a way for hardware in a computer to communicate with each other.
- Creating a ____ means making a duplicate copy of important files so that when a problem occurs, you can restore those files using the copy.(a) hot file(b) mirror(c) print out(d) hotspot(e) backup
(e)Explanation: (e) A backup refers to an operation or procedure of copying and achieving of computer data to an alternative location so that it may be used to restore the original if deleted or becomes corrupted.
- Computers manipulate data in many ways and this manipulation is called ____(a) processing(b) upgrading(c) batching(d) utilizing(e) downloading
(a)Explanation: (a) Data processing is the process of collection and manipulation of data to produce meaningful information. Data is processed under the control of set of instructions called programs.
- Personal computers are connected to one another to form a ______(a) Super Computer(b) Server(c) Enterprise(d) Network(e) None of these
(d)Explanation: (d) A computer network is a group of computers and other hardware devices that are linked together through communication channels to facilitate communication and resource- sharing among a wide range of users.
- Hard disk drive is considered ________ storage medium.(a) Non volatile(b) Flash(c) Temporary(d) Non permanent(e) None of these
(a)Explanation: (a) A hard disk drive (or HDD) is a non-volatile storage device for digital data. That is, it is the computer’s main storage media device that permanently store all data on the computer.
- ________ is a unit of measurement which is equivalent to 1,048,576 bytes that is equal to approximatelly 1 million byte COMPUTER 4 SET(a) Gegabyte(b) Byte(c) Memory(d) Megabyte(e) Kilobyte
(d)Explanation: (d) As a measure of computer disk storage capacity a megabyte (or MB) is 2 to the 20th power bytes or 1,048,576 bytes or 1,000,000 bytes approximately.
- Collection of programs that control how the system runs and process the information is called_______(a) Computer(b) Interpreter(c) Office(d) Compiler(e) Operating System
(e)Explanation: (e) An operating system is a system software that directs a computer’s operations, controlling and scheduling the execution of other programs and managing storage, input/output and communication resources.
- The components of computer system which we can touch is(a) Software (b) Hardware(c) Modem(d) Memory(e) Cable
(b)Explanation: (b) Computer hardware refers to the physical parts or components of a computer system that can be seen or touched. It can be categorized into input devices (keyboard, mouse, scanner, etc); Output devices (printer, monitor, speaker, etc) and storage devices (optical disks, magnetic disks, pen drives, etc).
- Data is recorded in floppy disk in __________ rings(a) Ringers(b) Sectors(c) Tracks(d) Rounders(e) Circles
(c)Explanation: (c) The surface of a floppy disk is organized into circular rings called tracks. Data is stored on these circular tracks as tiny spots. That is, 0 and 1s are represented magnetically. Each track is divided into pie-shaped groups of sectors.
- Device used to connect a network without use of a cable is called _(a) Centralised(b) Distributed(c) Open Source(d) Wireless(e) Without card
(d)Explanation: (d) A wireless device can refer to any kind of communication equipment that doesn’t require a physical wire for relaying information to another device. Wireless network utilize radio waves and/or micro waves to maintain communication channels between computers and other network devices.
- Tape drive gives _______ access to data.(a) Sporadic(b) Timely(c) Random(d) Sequential(e) Disastrous
(d)Explanation: (d) A tape drive is a sequential access device because to get to point ‘q’ on the tape, the drive needs to pass through points ‘a’ through ‘p’.
- Error in computer program is called(a) Failure of Power(b) Crash(c) Bug(d) Virus(e) Bugger
(c)Explanation: (c) A software bug is a error, flaw, failure or fault in a computer program or system that produces an incorrect or unexpected result or causes it to behave in unintended ways.
- Round, shiny and portable disk that stores software and information in large sizes is ________(a) Floppy Disk(b) CD-ROM(c) Scanner(d) Monitor(e) Laptop
(b)Explanation: (b) A compact disc (CD) is a plastic- fabricated, circular medium for recording, storing and playing back audio, video and computer data. Different versions of CD includes CD-ROM, CD-RW, CD-W, etc.
- To keep files organized, related documents are often stored in ___ (also called directories) located on the storage medium.(a) labels(b) indexes (c) folders(d) programs(e) cabinets
(c)Explanation: (c) In graphical user interfaces such as windows and Macintosh environment, a folder is a container that helps to organize your files. Every file on your computer is stored in a folder, and folders can also hold other folders (Sub-folder). In DOS and UNIX, folders are called directories.
- Generally a Hardware device connected to the computer through cable is called _______(a) Virus(b) Icon(c) Database(d) Pixel(e) Peripheral
(e)Explanation: (e) A peripheral device is a hardware device that is connected to a computer through cable into several I/O interfaces such as communications (com), univerasal serial bus (USB) and serial parts eg. mouse, printer, monitor, etc.
- Result of an input after processing by computer is called _______(a) Data(b) Output(c) Multitasking(d) Tracking(e) Intake
(b)Explanation: (b) Any meaningful information that has been processed and comes out from a computer or computer device is considered output. Output can appear in a variety of forms- as binary numbers, as characters, as pictures, sound and as printed pages.
- In binary language, each letter, number or special character of alphabet is unique combination of _________(a) Eight kilobytes(b) Eight bytes(c) Eight characters(d) Eight bits(e) Eight megabytes
(d)Explanation: (d) It takes eight bits to make up an individual character (letter, number or symbol) used in the English language. Each individual character is called as a byte. Therefore, eight bits equal one byte. While a bit is the smallest unit of information, bytes are known as the building blocks for all information that flows through a computer.
- All the components of your computer are either________(a) Application software or system software (b) Software or CPU/RAM(c) Input device or output device(d) Hardware or software(e) Input or output
(d)Explanation: (d) The components of a computer can be broadly classified into : Hardware and Software. Hardware refers to any physical component that can be seen or touched, eg. CPU, monitor, keyboard, etc. Software refers to the programs which are required to operate the computer, eg. system software, application software etc.
- A _______ is a collection of information saved as a unit.(a) print-out(b) folder(c) path(d) file extension(e) file
(e)Explanation: (e) A file is a collection of data or information that has a name (filename). Almost all information stored in a computer must be in a file. There are different types of files that store different types of information. For eg. Program files store programs, text files store text, etc.
Q142. The ALU performs _____ operations.(a) ASCII(b) logarithm-based(c) algorithm-based(d) arithmetic(e) debugging
(d)Explanation: (d) The ALU (arithmetic logical unit) of CPU performs arithmetic operations on integers such addition, subtraction, multiplication and division as well as logical comparisons such as less than, greater than, equal to, etc.
- The primary purpose of software is to turn data into _____(a) information(b) Web sites(c) programs(d) objects(e) graphics &
(a)Explanation: (a) The primary purpose of software is to turn data (raw facts or figures) into meaningful information which can be used in decision making. eg. data such as number of hours an employee worked and pay rate when fed into payroll software gives salary of the employee.
- You use a(n) ______, such as a keyboard or mouse, to input information.(a) download device(b) output device(c) storage device(d) processing device(e) input device
(e)Explanation: (e) Input devices are peripheral devices that are used to input data or information into a computer. They convert symbols that people understand into bits that computers can process. eg, keyboard, scanner, magnetic-stripe reader, etc.
- Keyboards. scanners, and microphones are examples of _____(a) input devices(b) software programs(c) output devices(d) utilities(e) code
(a)Explanation: (a) Keyboard, Scanners and Microphones are examples of input devices that help in feeding input (text, image, sound) to the computer.
- _______ is a general term for hardware that is not necessary for basic functions and are connected externally.(a) Icon(b) Peripheral(c) Bit(d) Keyboard(e) Printer
(b)
- .bas, .doc and .htm are examples of(a) Domains(b) Databases(c) Extensions(d) Protocols(e) URLs
(c)Explanation: (c) A file name extension is a suffix (separated from the base file name by a dot or space ) to the name of a computer file applied to indicate the encoding (file format) of its contents or usage. eg. bar, doc, htm, etc.
- ________ is a process of dividing the disk into tracks and sector.(a) Naming (b) Tracking(c) Crashing(d) Alloting(e) Formatting
(e)Explanation: (e) Disk formatting is a process of dividing a disk into tracks and sectors so that the operating system can store and locate data and information on the disk. It is basically a process of preparing a disk for digital data storage by organizing.
- It is a long rubber created bundle of wire on which there is a plug on both the sides for connecting computer parts ______(a) Cable(b) Disk Drive(c) Computer(d) Hardware(e) Software
(a)Explanation: (a) A cable (or chord/plug/connector) is one or more wires covered in a plastic covering that connects a computer to another device thereby providing communication between devices. eg. a cable that connects monitor to computer and allows computer to display a picture on the monitor.
- An electronic component that can be programmed to perform tasks is a ______(a) microprocessor(b) CPU(c) transistor(d) printer(e) scanner
(a)Explanation: (a) A microprocessor is an electronic component that is used by a computer to do its work. It is a central processing unit on a single integrated chip containing millions of very small components including transistors, resistors and diodes that work together.
- What would you do to highlight a word ? You position the cursor next to the word and then _____(a) Click mouse once(b) Drag mouse while holding button down(c) Rolll the mouse around(d) Roll and then click mouse(e) Type it twice
(b)
- A round floppy piece of plastic which is used for storing information. This is kept under hard square cover for protection(a) Hard disk(b) Pixel(c) Floppy disk(d) Icon(e) None of these
(c)Explanation: (c) A floppy disk refers to a flexible plastic disk coated with magnetic material and covered by a protective jacket, used primarily by computers to store data magnetically.
- What is the full form of ROM ?(a) Relative Overlay Module(b) Random Opaque Modulator(c) Read Opitcal Media(d) Read Only Memory(e) Red Orange Magenta
(d)Explanation: 33.(d) ROM stands for read only memory. It is a computer memory that can permanently store data and applications within it. That is, it is non-volatile.
- Contents of________ gets erased when computer is turned off.(a) Output(b) Input (c) Storage(d) Memory(e) CD
(d)Explanation: (d) Contents of main memory (or random access memory) gets lost when the computer is turned off. That is, it is volatile.
- All the media given below can read and write except______(a) Floppy disks(b) Flash memory cards(c) Hard disk drives(d) CD-ROMs(e) None of these
(d)Explanation: (d) Flash memory cards, floppy disk and hard disk drives are non-volatile computer storage device that can be electrically erased and reprogrammed, Whereas CD-ROM (stands for compact disc-read only memory) is a pre-pressed compact disc. Data once written on it, then it becomes read only. It can’t be reprogrammed.
- ______ is a small picture on screen that depicts program, file or folder.(a) Memory(b) Icon(c) Chip(d) Virus(e) Pixel
(b)Explanation: (b) A computer icon is a small pictures that represents an object or program. When you click icon, the associated object or program will be opened. Icons help in quickly identifying a type of object or program associated with the icon. Turn Any Loss Into A Gain, And Any Failure Into A success Development A Prelude To Prevail ELEMENTS OF A GOOD PERSONALITY
- Computer collects data, that means it allows users to______ data(a) Transmit(b) Present(c) Output(d) Store(e) Input
(e)Explanation: (e) Input allows user to enter or feed data into a computer through input devices such as keyboard, mouse, scanner, etc.
- Device which takes a picture and converts it into computerised image(a) Scanner(b) Hard drive(c) Printer(d) Modem(e) Cable
(a)Explanation: (a) A scanner is an input device that reads or scans an image and converts it into a digital format. It captures images from photographic prints, posters, magazine pages, print out of documents, etc. for computer editing and display.
- Non volatile memory(a) Cannot be used for storing program(b) Can be thrown into fire without exploding(c) Can keep contents without the supply of electricity(d) Loose contents without the supply of electricity(e) Can dissolve into water
(c)Explanation: (c) Non-volatile memory is a computer memory that can retain stored information even when the power is not ‘on’. It permanently stores information. eg. Read only memory, storage devices such as hard disk drive, floppy, etc.
- Transformation of input into output is performed by_______(a) Memory(b) Peripherals (c) Storage(d) Input-Output unit(e) CPU
(d)Explanation: (d) Processing of data (raw facts or figures) into meaningful information is done by the CPU. Processing is done under the control of set of instructions called programs CPU contains the circuitry necessary to interpret & execute program instructions.
- Files deleted from the hard disk are sent to the ________ .(a) floppy disk(b) Recycle Bin(c) clipboard(d) motherboard(e) None of these
(b)Explanation: (b) Recycle bin is a waste basket that works as a location or Directory for deleted files or folders. All the files, folders, programs that you discard gets stored in it and you must empty it to permanently delete files & folders from your computer.
- The __________ tells the computer how to use its components.(a) network(b) utility(c) application program(d) operating system(e) None of these
(d)Explanation: (d) An operating system is a system software that enables the computer hardware to communicate and operate with the computer software.
- A(n)_____is a program that makes the computer easier to use.(a) application(b) utility(c) operating system(d) network(e) None of these
(b)Explanation: (b) A utility program allows a user to perform maintenance-type tasks usually related to managing a computer, its devices or its programs. This makes computer easier to use, eg. Disk fragmenter, file compression, etc.
- When sending an e-mail, the ____ line describes the contents of the message.(a) to(b) subject(c) contents(d) cc(e) None of these
(b)Explanation: (b) Subject in an email is a description of the topic of the message. The subject line must be informative and tempt the reader into wanting to know more about the content.
- Passwords enable users to __________.(a) make efficient use of time(b) get into the system quickly(c) retain confidentiality of files(d) simplify file structures(e) None of these
(c)Explanation: (c) Password is a set of secret characters or words utilized to gain access to a computer, web page, network resource or files. Password help ensure that computers or files can be accessed only by those who have been granted the right to view or access them. In this way, passwords provide confidentiality of computers or files from authorized access.
- A complete electronic circuit with transistors and other electronic components on a small silicon chip is called a (n) ________ .(a) CPU(b) Workstation (c) magnetic disk(d) integrated circuit(e) None of these
(d)Explanation: (d) An integrated circuit (IC), also called a chip or micro chip, is a semiconductor wafer on which thousands or millions of any resistors, capacitors and transistors are fabricated.
- Which elements of a Word document can be displayed in colour?(a) Only text(b) Only graphics(c) All elements(d) All elements, but only if you have a colour printer(e) None of these
(c)Explanation: (c) All elements like text and images can be displayed in color in MS-Word. The user can choose color of his/her own choice.
- Personal computers can be connected together to form a ____ .(a) supercomputer(b) server(c) enterprise(d) network(e) None of these
(d)Explanation: (d) A computer network is a group of computers and other hardware devices that are linked together through communication channels to facilitate communication and resource-sharing among a wide range of users.
- A ____ pre-designed document that already has coordinating fonts, a layout, and a background.(a) model(b) guide(c) ruler(d) template(e) None of these
(d)Explanation: (d) A template is a tool for enforcing a standard layout and look and feel across multiple pages or within content regions. When you change a template any pages or regions that are based on that template are automatical ly changed as well . It is something which is pre-formatted.
- A ____ is a named set of characters that have the same characteristics.(a) type style(b) type face(c) font(d) pico(e) None of these
(c)Explanation: (c) Fonts are designed for a set of characters. It is a graphical representation of text that may include a different typeface, point size, weight or design. eg, Times Roman is a typeface that defines the shape of each character, within Times Roman, there are many fonts to choose fromdifferent sizes, italic, bold, etc.
- The blinking symbol on the computer screen is called the(a) logo(b) mouse(c) hand(d) palm(e) cursor
(e)Explanation: (e) A cursor refers to a movable indicator on a computer screen identifying the point that will be affected by input from the user.
- A ____ can make it easier to play games.(a) Joystick(b) mouse(c) keyboard(d) pen (e) None of these
(a)Explanation: (a) In computers, a joystick is a cursor control device used in computer games and assistive technology. It allows an individual to move an object in a game such as navigating a plane in a flight simulator.
- A device operating at the physical layer is called a(a) Router(b) Bridge(c) Repeater(d) All of the above(e) None of these
(c)Explanation: (c) A repeater is an electronic device that receives a signal and retransmits it at a higher level or higher power or onto the other side of an obstruction, so that the signal can cover longer distances. Because repeaters work with the actual physical signal and do not attempt to interpret the data being transmitted, they operate on the physical layer, the first layer of the OSI model.
- What is the term for unsolicited e-mail ?(a) usenet(b) newsgroup(c) backbone(d) flaming(e) spam
(e)Explanation: (e) Email spam, also known as junk email or unsolicited buck email is flooding the internet with many copies of the same message, in an attempt to force the message on people who would not otherwise choose to receive it.
- To access properties of an object, the mouse technique to use is _________ .(a) shift-clicking(b) right-clicking(c) dragging(d) dropping(e) None of these
(b)Explanation: (b) Right-clicking an item usually displays a list of things you can do with the item. For eg. when you right-click the recycle bin on your desktop, windows displays a menu allowing you to open it, empty it, delete it or see its properties.
- Softcopy is the intangible output, so then what is hardcopy ?(a) The printed parts of the computer(b) The physical parts of the computer(c) The printed output(d) The physical output devices(e) None of these &
(c)Explanation: (c) A hard copy is a printed copy of information from a computer. It is called so because it exists as a physical object.
- The basic building block of a database that contains related records is(a) Form(b) Query(c) Table(d) Edited Page(e) Report
(c)Explanation: (c) Tables, the basic building blocks of a database, are made up of records (or rows) and fields (or columns). For eg. a contacts table would contain several records and each record would contain several fields that store information such as the last name, first name, telephone number, etc.
- What is output?(a) What the user gives to the processor(b) What the processor takes from the user(c) What the processor gets from the user(d) What the processor gives to the user(e) None of these
(d)Explanation: (d) Any information that has been processed by the processor (CPU) and comes from a computer is considered an output. When someone is viewing output, they are seeing it on an output device such as a computer monitor or a hard copy print out.
- Something which has easily-understood instructions is said to be ____ .(a) information(b) user friendly(c) word processing(d) icon(e) None of these
(b)Explanation: (b) In computer, use-friendly refers to something which is easy to learn, understand and deal with eg. menu-driven programs are considered more user-friendly than command driven systems. Graphical user interfaces are also considered user friendly. They all make it easier for novices to use a computer.
- To make the number pad act as directional arrows, you press the ____ key.(a) arrow lock(b) shift(c) num lock(d) caps lock(e) None of these
(c)Explanation: (c) The Num Lock (or numeric lock or number lock) key enables and disables the numeric pad on the keyboard. Turning the Num lock ‘on’ will allow the user to use the numbers on the keypad and turning it ‘off ‘ will enable the keys other than functions such as using the keypad as an arrow pad.
- The system BIOS and ROM chips are called :(a) Firmware(b) Software(c) Hardware(d) Bootware(e) None of these
(a)Explanation: (a) Firmware boots up computerized or digital devices, as ROM chips are non-volatile, meaning they do not require a power source to hold their contents. This differentiates firmware from random access memory (RAM), for example, which loses stored data at shutdown. Perhapes the most familiar firmware is the basic input output system (BIOS) chip. The BIOS chip on a computer motherboard holds instructions that, upon powering up, initialize the hardware, ensure components are working, and finally roll out the operating system to take over.
- The ____________ of the CPU manages the on/off switches inside the CPU.(a) ALU(b) microprocessor(c) transistors(d) control unit(e) None of these
(d)Explanation: (d) Switches are the devices inside the computer that can be flipped between the two states1 or 0, on or off. Types of electronic switches are vacuum tubes, Transistors (semiconductors) and integrated circuits. The control unit manages the switches inside the CPU. It moves each switch to its correct setting (on or off) and then performs the work of that processing stage.
- If you get frequent general protection faults, this could indicate(a) Too much RAM is installed(b) A hard drive cable connected incorrectly(c) Poor quality of memory chips(d) All of the above(e) None of these
(c)Explanation: (c) Memory chips can be high grade, low-grade, remanufactured or used. Poor-quality memory chips can cause frequent General Protection fault (GPF) errors in windows application errors and errors that hang the system.
- —— error code identifies a floppy drive problem(a) 401 (b) 301(c) 501(d) 601(e) None of these
(d)Explanation: (d) Error 601 shows this message could not continue scan with NOLOCK due to data movement.
- During boot-up, the memory test :(a) Displays what memory is installed, but nothing else(b) Checks and verifies that contiguous memory is installed(c) Is an operational error(d) Is a superfluous step that should be ignored(e) None of these
(b)Explanation: (b) Your computer’s Bios will run a memory test everytime the computer boots up. The bootup memory test primarily checks memory on the hard drive, checks virtual memory, verifies contiguous memory and displays ROM memory.
- What is the default font size of a new Word document based on Normal template?(a) 8 pt(b) 10 pt(c) 14 pt(d) 12 pt(e) None of these
(d)Explanation: (d) The default font was changed from 10 point Times New Roman in word 97 and earlier versions to 12-point Time New Roman in Word 2000 and later. According to Microsoft, this change was implemented because many web browsers use 12 pt as their defualt font size. The decision had nothing to do with what may be most appropriate for printed documents.
- A SIMM has how many pins?(a) 40(b) 36(c) 34(d) 20(e) None of these
(a)Explanation: (a) A SIMM, or single in-line memory module, is a type of memory module The first variant of SIMMs has 30 pins and provides 9 bits of data The second variant of SIMMs has 72 pins and provides 32 bits of data Non-IBM PC computers such as UNIX workstations may use proprietary non-standard SIMMs. The Macintosh IIfx uses proprietary non-standard SIMMs with 64 pins.
- Which computer system component is used for short- term data storage?(a) Floppy drive(b) Hard drive(c) CD-ROM(d) RAM(e) None of these
(d)Explanation: (d) Random-access memory (RAM) is a form of computer data storage. It takes the form of integrated circuits that allow stored data to be accessed in any order in a constant time, regardless of its physical location and whether it is related to the previous piece of data. RAM is often associated with volatile (short term data storage) type of memory.
- Which type of RAM is normally the fastest?(a) VRAM(b) DRAM(c) SRAM(d) WRAM(e) None of these
(d)Explanation: (d) WRAM is window random access memory. It is a high performance video ram which operates at a 25% increase in bandwidth. It improves performance and is designed for use with graphic cards. WRAM is similar to VRAM but achieves even faster performance at less cost because it supports addressing of large blocks (windows) of video memory.
- What memory is located above the first 1024K of memory?(a) Extended(b) Conventional(c) Upper(d) Expanded(e) None of these
(a)Explanation: (a) Memory above and beyond the standard IMB (1024k) of main memory that DOS supports. Extended memory is only available in PCs with an Intel 80286 or later microprocessor.
- CPU contains(a) Arithmetic unit(b) Logical unit(c) Control unit(d) All of the above(e) None of these
(d)Explanation: (d) CPU (Central Processing Unit) is the brain of the computer that contains the circuitry necessary to interpret & execute program instructions. It comprises of arithmetic logic unit (to perform arithmetic calculations like addition, multiplications and logical comparisons like NOT, EQUAL TO, etc) and control unit (which coordinates the components of a computer system).
- On August 23, 2008 an accounting clerk prepared an invoice dated August 31, 2008. Which control can check this?(a) Hash total(b) Size check(c) Range check(d) All of the above(e) None of these
(c)Explanation: (c) Range check control checks that the data lie within a speci- fied range of values. For eg. the month of a person’s date of birth should lie between 1 and 12. Similarly, number of days for the month of August lie between 1 and 31.
- The elements of computer processing system are(a) Hardware, Programs and People(b) Hardware, Software, Information & People(c) Hardware, Data, Users and Procedures(d) All of the above(e) None of these
(c)Explanation: (c) To be valuable, information must be accurate, organized, timely, accessible, useful and cost effective to produce Generating information from a computer requires the following five elements - Hardware, Software, Data, People (or users) and procedures. Together these five elements comprise an information system.
- The data flow diagram is for analysing(a) Restrict the number of times a function can be performed(b) How to do a function efficiently(c) Requirements of user(d) All of the above(e) None of these
(c)Explanation: (c) The Data Flow diagram (DFD) is an excellent communication tool for analysts to model processes and functional requirements. The sponser of a project and the end user will need to be briefed and consulted throughout all stages a system’s evalution with a DFD, users are able to visualize how the system will operate what the system will accomplish and how the system will be implemented.
- The ____________ determines how many bits of data can be sent along a given bus at any one time.(a) bus width(b) control unit(c) bus speed(d) amount of memory (e) None of these
(a)Explanation: (a) The size of the bus, called the bus width, determines the number of bits that the computer can transmit at one time. for eg. a 32- bit bus can transmit 32 bits (4 bytes) at a time on at 64-bit bus, bits transmit from one location to another 64 bits (8 bytes) at a time. The larger the number of bits handled by the bus, the faster the computer transfers data.
- Using anti-virus software is(a) Preventive measure(b) Detective measures(c) Corrective measure(d) All of the above(e) None of these
(a)Explanation: (a) Installing anti-virus software is preventive measure. It prevents viruses from spreading to and from your computer. It searches for latent viruses on your computer, including viruses that may have spread to your system without your knowledge and fixes them. It protects your system from.
- An online transaction is(a) One that is done via telephone(b) One that is done in real time(c) Transaction done via internet(d) All of the above(e) None of these
(c)Explanation: (c) Transactions done via internet are called online transactions. eg. online shopping, online banking, etc.
- A computer is a _____ device.(a) Electrical(b) Calculating(c) Electronic(d) All of the above(e) None of these
(c)Explanation: (c) A computer is an electronic device that takes raw data as an input, from the user and processes these data under the control of a set of instructions (called programs) and gives results (output) and saves output for future use.
