Chapter 03 Flashcards
The central processing unit (CPU):
- is the main processing component of a computer system
- controls all the peripheral devices of a computer system
- is controlled by the RAID unit
- is also called a Fuzzy Logic unit
1. is the main processing component of a computer system
According to the text, which of the following is not true of Mainframes?
- Mainframes can process thousands of million instructions per second (MIPS).
- Mainframes are large, fast, and powerful.
- Mainframes have large storage capacities.
- All of the choices are correct.
4. All of the choices are correct.
The output devices of a computer system include:
- printers and video displays
- the Arithmetic-logic unit
- scanners and RAID units
- the Fuzzy Logic unit
1. printers and video displays
The dark, magnetic stripe on the back of credit cards can hold about _______________ of information.
- 200 gigabytes
- 200 kilobytes
- 200 bytes
- Immaterial, as this technology is not yet available in the United States
3. 200 bytes
Smart cards, a form of input technology that contains an embedded microprocessor chip, are becoming popular in the United States for use in debit and credit cards.
True | False
True
The second generation of computers relied on _______________.
- miniaturized circuits
- transistors
- vacuum tubes
- punch cards
2. transistors
The top criteria for corporate PC ownership are operating system ready, connectivity, solid performance, and global compatibility.
True | False
False
The top criteria for corporate PC ownership are operating system ready, connectivity, solid performance, and security equipped. (True)
Computer systems rely on all the following components except _______________.
- input
- internet
- processing
- storage
2. internet
All of the following relate to Peripherals except:
- input devices
- output devices
- CPU devices
- secondary storage devices
3. CPU devices
Floppy disks consists of a polyester film disk covered with an _______________ compound.
iron oxide
According to the text, the __________ is one of several commercial devices that takes the human-computer interface to a new level.
iPhone
A touchpad is best described as a:
- Small, rectangular, touch-sensitive surface usually placed below the keyboard
- Stationary device containing a roller ball whose top is exposed outside its case
- Pen-shaped device with a ballpoint at the end
- Device rolled along the desktop in order to move the cursor on the screen
1. Small, rectangular, touch-sensitive surface usually placed below the keyboard
Web-enabled personal digital assistants use touch screens, pen-based handwriting recognition, or keyboards, so mobile workers can send and receive e-mail, access the Web, and exchange information with their desktop PCs or Web servers.
True | False
True
The primary storage (main memory) of a computer is also called:
- ROM
- RAID
- RAM
- None of the choices are correct.
3. RAM
An electronic _______________ is a pointing device that is used to move the cursor on the screen, as well as to issue commands and make icon and menu selections. It is the most popular pointing device used today.
mouse
The first electronic digital computer was completed in the 1960s.
True | False
False
The first electronic digital computer was completed in 1946 at the Moore School of Electrical Engineering. (True)
The mechanical loom was invented by _______________.
- Blaise Pascal
- Joseph Jacquard
- Herman Hollerith
- Keith Glennan
2. Joseph Jacquard
According to the text, using web-enabled PDAs allows workers to realize all the following benefits except:
- Send and receive email
- Access the Web
- Exchange information with desktop PCs or Web servers
- Helps retain younger and more technologically savvy employees
3. Exchange information with desktop PCs or Web servers
A trackball is a type of pointing device that converts drawings and other graphic images into digital data in order to enter it into a computer system.
True | False
False
A trackball is a stationary device related to the mouse. (True)
Magnetic tapes are no longer used by businesses today because the cost of storage on tape is very expensive compared to other types of storage media.
True | False
False
Magnetic tape is a low-cost storage medium. (True)
The function of an output device is to:
- Convert data into an electronic machine-readable form for direct entry into a computer system
- Perform the arithmetic and logic functions required in computer processing
- Convert electronic information produced by the computer system into human-intelligible form for presentation to end-users
- Store the data and program instructions needed for processing
3. Convert electronic information produced by the computer system into human-intelligible form for presentation to end-users
Use of _______________ panel video monitors for desktop systems has become more common as their cost has become more affordable.
flat
In the 1950s, _______________ replaced the vacuum tubes used in electronic computers.
transistors
Pen-based computing technologies are being used in many hand-held computers and personal digital assistants.
True | False
True
The terms direct access and random-access describe the same concept.
True | False
True
The control unit of the CPU interprets instructions and directs processing.
True | False
True
Midrange computers are often used as network servers in order to help manage large Internet websites, corporate intranets and extranets, and client/server networks.
True | False
True
The first electronic digital computer was completed in the _______________.
- 1870s
- 1940s
- 1950s
- 1960s
2. 1940s
Which of the following statements best describes a workstation computer?
- Supports applications with heavy mathematical computing and graphics display demands, such as computer-aided design (CAD)
- Coordinates telecommunications and resource sharing in small, local area networks (LANS)
- Allows convenient mobile communications and touch-screen computing
- All of the choices are correct.
1. Supports applications with heavy mathematical computing and graphics display demands, such as computer-aided design (CAD)
A RIM Blackberry combines a mobile phone, a music and video player, and an Internet communications device.
True | False
False
An iPhone does all this. (True)
The most recent entries to the information appliance and PDA market, from Apple, are ________________________________.
the iPhone and the iPad
Which of the following applies best to CD-RW optical disk technology?
- Users are unable to record their own data on the disks
- Users can record their own data, but only once
- Users are able to record and then erase the disks
- None of the choices are correct.
3. Users are able to record and then erase the disks
A computer is a system, an interrelated combination of components that perform the basic system functions of _______________, processing, output, storage, and control.
input
_______________ ink allows the computer systems of the banking industry to read checks and deposit slips.
Magnetic
Experts predict the merging or disappearance of several computer categories. For example, many midrange and mainframe systems have been made obsolete by the power and versatility of client/server networks composed of microcomputers and servers.
True | False
True
_______________ are popular as powerful network servers to help manage large Internet Websites, intranets, and extranets.
- Workstations
- Minicomputers
- Supercomputers
- Mainframes
2. Minicomputers
Most computers today can process program instructions in MIPS, which is ____________________.
millions of instructions per second
Optical scanning enables the direct entry of data from source documents into a computer system.
True | False
True
Data are processed and stored in a computer system through the presence or absence or electronic or magnetic signals to the computer. This is called a “bi-state” representation of data because the computer and the media can exhibit only two states or conditions.
True | False
False
This is called a “two-state” or “binary” representation of data. (True)
Advances in video monitor technology, such as active matrix and dualscan capabilities, have improved the color, but not the clarity, of LCD displays.
True | False
False
Advances in video monitor technology have improved both the color and the clarity of LCD displays. (True)
Which of the following best describes magnetic stripe technology?
- A form of data entry that helps computers read credit cards
- A form of computing where debit and credit cards have an embedded microprocessor chip
- Technology that enables users to download full-motion video into a computer system
- Technology commonly used in banks in order to magnetically read checks and deposit slips
1. A form of data entry that helps computers read credit cards
The principal drawback of the Electronic Numerical Integrator and Computer (ENIAC) was its __________ and processing ability.
size
A bit, the smallest element of data, can have values of:
- 0 or 1
- 0, 1, or 8
- 0 through 7
- 0 through 8
1. 0 or 1
The function of an input device is to interpret computer program instructions and to transmit directions to the other components of the computer system.
True | False
False
The function of an input device is to convert data into electronic form for entry into a computer system. (True)
A gigabyte (GB) is used to express which of the following approximate measures?
- 1,000 byes of storage
- 1,000,000 bytes of storage
- 1,000,000,000 bytes of storage
- 1,000,000,000,000 bytes of storage
3. 1,000,000,000 bytes of storage
A _______________ server is a powerful microcomputer that is used to coordinate telecommunications and resource sharing in small local area networks (LANs) and Internet and intranet web sites.
network
An intelligent terminal that can perform data entry and some information processing tasks independently is called a _______________ terminal.
- transaction
- dumb
- Windows
- remote
1. transaction
The output devices of a computer system can include video display units, scanners, and printers.
True | False
False
A scanner is an input device. (True)
The central processing unit (CPU) consists of:
- the Control unit and the RAID unit
- Arithmetic-logic unit and the RAID unit
- the RAID unit and the Fuzzy Logic unit
- the Control unit and the Arithmetic-logic unit
4. the Control unit and the Arithmetic-logic unit
The function of an input device is:
- to interpret computer program instructions
- to transmit directions to other components of the computer system
- to convert data into electronic form for entry into a computer system
- none of the above
3. to convert data into electronic form for entry into a computer system
Some microcomputers are powerful enough to support applications with heavy mathematical computing and graphics display demands, such as computer-aided design (CAD) or investment analysis.
True | False
True
Computer systems rely on which of the following components?
- Input, processing, output, storage, and control
- Input, processing, output, storage, and the Internet
- The Internet, processing, output, storage, and control
- Input, processing, output, the Internet, and control
1. Input, processing, output, storage, and control
The most popular pointing device used today is the _______________.
- pointing stick
- light pen
- trackball
- electronic mouse
2. light pen
According to the text, what are the current types of RFID chips?
- Electrical and magnetic
- Positive and negative
- Active and passive
- Red and Green
3. Active and passive
The third generation of computers relied on _______________.
- solid state technology and integrated circuits
- transistors
- vacuum tubes
- punch cards
1. solid state technology and integrated circuits
Offline devices are separate from, but can be electronically connected to and controlled by, a CPU.
True | False
False
Offline devices are not under the control of the CPU. (True)
RFID chips may be attached to objects, but cannot be injected into them because it interferes with radio signal transmission.
True | False
False
RFID chips can be attached to objects, but they can also be injected into them. A recent use for RFID chips is the identification of pets, who have a chip imbedded under their skin. (True)
The computing power of microcomputers currently exceeds that of the mainframe computer of previous generations, at a fraction of the cost.
True | False
True
Active RFID chips are self-powered and must be close to the reader to transmit their signal.
True | False
False
Active RFID chips do not need to be close to the reader to transmit their signal. (True)
The capacity of memory chips is usually expressed in terms of bytes. A _______________ is a basic grouping of bits that the computer operates as a single unit.
byte
A _______________ is an extremely powerful mainframe computer system, which is specifically designed for high-speed numeric computations and is used by governmentresearch agencies and national weather forecasting agencies.
supercomputer
A _______________ is a stationary pointing device. You turn a roller with only its top exposed outside its case to move the cursor on the screen.
trackball