intro 2 cs ✔️ Flashcards
1
Q
the name for screen clarity
A
resolution
2
Q
collection of raw facts and figures
A
data
3
Q
another name for data processing
A
data computing
4
Q
electronic device that accepts, processes data and produces information
A
computer
5
Q
examples of category softwares:
A
- application software
- system software
6
Q
examples of packaged softwares:
A
- ms word
- front page
- ms access
- ms excel
- power point
7
Q
examples of application softwares:
A
- internet
- games
- multimedia software
8
Q
inkjet printer is example of:
A
non impact printer
9
Q
cpu stands for:
A
central processing unit
10
Q
examples of secondary storage device:
A
- cd rom
- hard disk drive
- cd rom drive
- tape drive
- dvd rom
- floppy disk
11
Q
device driver is an example of:
A
system software
12
Q
examples of input devices:
A
- keyboard
- touchpad
- microphone
- scanner
- mouse
- digital camera
13
Q
what key is used to change lowercase letters to uppercase and vice versa
A
caps lock
14
Q
computer is a combination of:
A
software and hardware
15
Q
examples of hardware components:
A
- input device
- secondary storage
- processor
16
Q
another name for main memory
A
primary storage
17
Q
set of instructions in a computer:
A
software and program
18
Q
a program or set of programs that are specially designed to control the computer system
A
system software
19
Q
what key is used to cancel the current operation
A
esc (escape key)
20
Q
arrow keys are also known as
A
cursor control keys
21
Q
examples of input devices that are pointing devices:
A
- pointing stick
- digitizing tablet
- touchpad
22
Q
what pointing devices has a vertical handle like a gearshift lever
A
joystick
23
Q
what pointing device uses the sensors to detect the touch of a finger
A
touchscreen
24
Q
what device does imaging use to input data
A
scanner
25
the barcode is also called
universal product code
26
photoelectric scanner that translates barcode symbols into digital code
barcode reader
27
what device is used to check and process the test marks of students
optical mark recognition (omr)
28
example of audio input device
microphone
29
examples of output devices:
- monitor
- speaker
- printer
- plotter
30
what unit are printers and monitors examples of
output unit
31
examples related to softcopy output:
- cathode ray tube (crt)
- monitor
- screen
32
which printer works like a photocopying machine
laser printer
33
how many graphic cards are used
3 (dedicated, shared, and integrated)
34
what resolution does a monitor that has vga (video graphics array) cards have
320 x 200 pixels
35
examples of impact printers:
- dot matrix printer
- daisy wheel printer
- line printer
35
characteristics of display screen:
- resolution
- size
- colour
36
how many pins does the print head of a dot matrix printer need to provide a quality printout
24 pins
37
what printers can print one character at a time
- dot matrix printer
- daisy wheel printer
37
dpi stands for
dots per inch
38
what output device is used to print continuous output like tracking an earthquake reading
drum plotter
39
bit stands for
binary digit
39
what is the largest unit of data storage
a word
40
how many MB is 1/2 GB
512 MB
40
8 bytes =
64 bits
40
how many GB in a TB
1024 GB
41
how many bits is a doubleword
32 bits
42
what phase in the software development lifecycle (sdlc) is the actual system produced in
coding stage
42
in what phase in the software development lifecycle (sdlc) is a system installed to solve a problem
implementation phase
43
what is related to preliminary investigation
- system identification
- system scope
- feasibility study
43
what phase of software development lifecycle (sdlc) comes after analysis phase
design phase
43
what method is used in data gathering to collect information from a part of people instead of many people of an organisation
sampling
44
softcopy means
screen output
44
what printer can print one complete line at a time
line printer
44
example of an input device used for playing video games
joystick
44
which task of investigation is related to limitations of the system
system scope
45
examples of inter-connecters
- port
- cables
- computer bus
46
another name for pointer
cursor
47
processed data is called
information
47
example of system software
- device driver
47
computing and communication technologies are combined together for:
data communication
48
device used for input of image data
scanner
48
another name for central processing unit (cpu)
microprocessor
48
device used for optical character recognition:
optical character recognition (ocr)
48
data and programs are permanently stored on:
secondary storage
49
data and programs are temporarily stored on:
primary storage
49
what is application software
program that is specifically designed to solve the specific problems of a user
50
what is input
data and instructions given to the computer
51
how many keys does a standard keyboard used in a personal computer have
101 keys
52
what kind of key is a caps lock key
toggle key
53
what is hardware
the physical part of a computer
54
the central processing unit (cpu) is an example of ________ware
hardware
55
what does a central processing unit (cpu) do
executes the instructions of a program
56
how many categories is a software classified into
2
57
what key is used to delete a character to the left of the cursor
backspace
58
what key is used to insert a new line or paragraph into any text editor
enter key
59
examples of input devices that are NOT pointing devices:
- joystick
- trackball
- touchscreen
60
what is a trackball
a stationary pointing device with a movable ball on its top
61
example of light sensitive stylus device:
- light pen
62
examples of mark and character recognition device:
- magnetic ink character recognition (micr)
- optical marks recognition (omr)
- optical character recognition (ocr)
63
what is a barcode
vertical zebra striped lines on manufactured products
64
what is magnetic ink character recognition (micr) used for
to read characters printed with magnetized ink
65
example of smart card
- SIM
66
example of video input device
- video camera
67
examples of internal parts of a computer:
- computer bus
- ram
- rom
68
what devices are used to get the softcopy output
monitor and display screen
69
line printer is up to what printing speed
3000 1pm
70
what is the printing speed of laser printing for microcomputer
4 to 32 pages per minute
71
example of a faster printer
laser printer
72
what output device is the videographic card inside the computer used for
monitor
73
pixel is short for:
picture element
74
how many colours does an extended graphics array (xga) card support
16.7 million colours
75
what kind of output is printed on paper
hardcopy output
