intro 2 cs ✔️ Flashcards
the name for screen clarity
resolution
collection of raw facts and figures
data
another name for data processing
data computing
electronic device that accepts, processes data and produces information
computer
examples of category softwares:
- application software
- system software
examples of packaged softwares:
- ms word
- front page
- ms access
- ms excel
- power point
examples of application softwares:
- internet
- games
- multimedia software
inkjet printer is example of:
non impact printer
cpu stands for:
central processing unit
examples of secondary storage device:
- cd rom
- hard disk drive
- cd rom drive
- tape drive
- dvd rom
- floppy disk
device driver is an example of:
system software
examples of input devices:
- keyboard
- touchpad
- microphone
- scanner
- mouse
- digital camera
what key is used to change lowercase letters to uppercase and vice versa
caps lock
computer is a combination of:
software and hardware
examples of hardware components:
- input device
- secondary storage
- processor
another name for main memory
primary storage
set of instructions in a computer:
software and program
a program or set of programs that are specially designed to control the computer system
system software
what key is used to cancel the current operation
esc (escape key)
arrow keys are also known as
cursor control keys
examples of input devices that are pointing devices:
- pointing stick
- digitizing tablet
- touchpad
what pointing devices has a vertical handle like a gearshift lever
joystick
what pointing device uses the sensors to detect the touch of a finger
touchscreen
what device does imaging use to input data
scanner
the barcode is also called
universal product code
photoelectric scanner that translates barcode symbols into digital code
barcode reader
what device is used to check and process the test marks of students
optical mark recognition (omr)
example of audio input device
microphone
examples of output devices:
- monitor
- speaker
- printer
- plotter
what unit are printers and monitors examples of
output unit
examples related to softcopy output:
- cathode ray tube (crt)
- monitor
- screen
which printer works like a photocopying machine
laser printer
how many graphic cards are used
3 (dedicated, shared, and integrated)
what resolution does a monitor that has vga (video graphics array) cards have
320 x 200 pixels
examples of impact printers:
- dot matrix printer
- daisy wheel printer
- line printer
characteristics of display screen:
- resolution
- size
- colour
how many pins does the print head of a dot matrix printer need to provide a quality printout
24 pins
what printers can print one character at a time
- dot matrix printer
- daisy wheel printer
dpi stands for
dots per inch
what output device is used to print continuous output like tracking an earthquake reading
drum plotter
bit stands for
binary digit
what is the largest unit of data storage
a word
how many MB is 1/2 GB
512 MB
8 bytes =
64 bits
how many GB in a TB
1024 GB
how many bits is a doubleword
32 bits
what phase in the software development lifecycle (sdlc) is the actual system produced in
coding stage
in what phase in the software development lifecycle (sdlc) is a system installed to solve a problem
implementation phase
what is related to preliminary investigation
- system identification
- system scope
- feasibility study
what phase of software development lifecycle (sdlc) comes after analysis phase
design phase
what method is used in data gathering to collect information from a part of people instead of many people of an organisation
sampling
softcopy means
screen output
what printer can print one complete line at a time
line printer
example of an input device used for playing video games
joystick
which task of investigation is related to limitations of the system
system scope
examples of inter-connecters
- port
- cables
- computer bus
another name for pointer
cursor
processed data is called
information
example of system software
- device driver
computing and communication technologies are combined together for:
data communication
device used for input of image data
scanner
another name for central processing unit (cpu)
microprocessor
device used for optical character recognition:
optical character recognition (ocr)
data and programs are permanently stored on:
secondary storage
data and programs are temporarily stored on:
primary storage
what is application software
program that is specifically designed to solve the specific problems of a user
what is input
data and instructions given to the computer
how many keys does a standard keyboard used in a personal computer have
101 keys
what kind of key is a caps lock key
toggle key
what is hardware
the physical part of a computer
the central processing unit (cpu) is an example of ________ware
hardware
what does a central processing unit (cpu) do
executes the instructions of a program
how many categories is a software classified into
2
what key is used to delete a character to the left of the cursor
backspace
what key is used to insert a new line or paragraph into any text editor
enter key
examples of input devices that are NOT pointing devices:
- joystick
- trackball
- touchscreen
what is a trackball
a stationary pointing device with a movable ball on its top
example of light sensitive stylus device:
- light pen
examples of mark and character recognition device:
- magnetic ink character recognition (micr)
- optical marks recognition (omr)
- optical character recognition (ocr)
what is a barcode
vertical zebra striped lines on manufactured products
what is magnetic ink character recognition (micr) used for
to read characters printed with magnetized ink
example of smart card
- SIM
example of video input device
- video camera
examples of internal parts of a computer:
- computer bus
- ram
- rom
what devices are used to get the softcopy output
monitor and display screen
line printer is up to what printing speed
3000 1pm
what is the printing speed of laser printing for microcomputer
4 to 32 pages per minute
example of a faster printer
laser printer
what output device is the videographic card inside the computer used for
monitor
pixel is short for:
picture element
how many colours does an extended graphics array (xga) card support
16.7 million colours
what kind of output is printed on paper
hardcopy output