Explore topic-wise MCQs in Computer Science.

This section includes 192 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Science knowledge and support exam preparation. Choose a topic below to get started.

51.

Who designed the first electronics computer – ENIAC?

A. van-neumann
B. joseph m. jacquard
C. j. presper eckert and john w mauchly
D. all of above
Answer» D. all of above
52.

Which of the following is also known as brain of computer

A. control unit
B. central processing unit
C. arithmetic and language unit
D. monitor
Answer» C. arithmetic and language unit
53.

Which of the following are the functions of a operating system

A. allocates resources
B. monitors activities
C. manages disks and files
D. all of the above
Answer» E.
54.

When creating a computer program, the ......... designs the structure of the program

A. end user
B. system analyst
C. programmer
D. all of the above
Answer» C. programmer
55.

Coded entries which are used to gain access to a computer system are called

A. entry codes
B. passwords
C. security commands
D. code words
Answer» C. security commands
56.

Which of the following is NOT one of the four major data processing functions of acomputer?

A. gathering data
B. processing data into information
C. analyzing the data or information
D. storing the data or information
Answer» D. storing the data or information
57.

In analogue computer

A. input is first converted to digital form
B. input is never converted to digital form
C. output is displayed in digital form
D. all of above
Answer» C. output is displayed in digital form
58.

All of the following are examples of storage devices EXCEPT :

A. hard disk drives
B. printers
C. floppy disk drives
D. cd drives
Answer» C. floppy disk drives
59.

Which of the following is a type of network

A. ring
B. bus
C. star
D. pan
Answer» E.
60.

A state. is a bi-stable electronic circuit that has

A. multivibrator
B. flip-flop
C. logic gates
D. laten
Answer» C. logic gates
61.

. Which of the following is not a storage medium?

A. hard disk
B. flash drive
C. dvd
D. scanner
Answer» E.
62.

............. Is the functional key to display save-as box.

A. f5
B. f6
C. f9
D. f12
Answer» E.
63.

A computer program that translates one program instructions at a time into machine languageis called a/an

A. interpreter
B. cpu
C. compiler
D. simulator
Answer» B. cpu
64.

........... is the key to close a selected drop -down list; cancel a command and close adialog box.

A. tab
B. shift
C. esc
D. f10
Answer» D. f10
65.

------ is the measurement of things such as fingerprints and retinal scans used forsecurity access.

A. biometrics
B. bio measurement
C. computer security
D. smart weapon machinery
Answer» B. bio measurement
66.

The term ............. designates equipment that might be added to a computer system toenhance its functionality.

A. digital device
B. system add-on
C. disk pack
D. peripheral device
Answer» E.
67.

A fault in a computer program which prevents it from working correctly is known as

A. boot
B. bug
C. biff
D. strap
Answer» C. biff
68.

Touch Screen is............

A. input device
B. output device
C. both a & b above
D. none of these
Answer» D. none of these
69.

What type of resource is most likely to be a shared common resource in a computerNetwork?

A. printers
B. speakers
C. floppy disk drives
D. keyboards
Answer» B. speakers
70.

Computers manipulate data in many ways, and this manipulation is called......

A. upgrading
B. processing
C. batching
D. utilizing
Answer» C. batching
71.

A device, which is not connected to CPU, is called as .......

A. land-line device
B. on-line device
C. off-line device
D. device
Answer» D. device
72.

.............printer is the cheapest in terms of price and operating cost

A. inkjet
B. laser
C. thermal
D. dot matrix
Answer» E.
73.

The task of performing operations like arithmetic and logical operations is called......

A. processing
B. storing
C. editing
D. sorting
Answer» B. storing
74.

............. provides process and memory management services that allow two or moretasks, jobs, or programs to run simultaneously

A. multitasking
B. multithreading
C. multiprocessing
D. multicomputing
Answer» B. multithreading
75.

Examples of output devices are

A. screen
B. printer
C. speaker
D. all of these
Answer» E.
76.

The amount of vertical space between lines of text in a document is called

A. double-space
B. line spacing
C. single space
D. vertical spacing
Answer» C. single space
77.

. Help Menu is available at which button?

A. end
B. start
C. turnoff
D. restart
Answer» C. turnoff
78.

A ............ is a microprocessor -based computing device.

A. personal computer
B. mainframe
C. workstation
D. server
Answer» B. mainframe
79.

A computer cannot 'boot' if it does not have the

A. compiler
B. loader
C. operating system
D. assembler
Answer» D. assembler
80.

Which of the following contains permanent data and gets updated during theprocessing of transactions?

A. operating system file
B. transaction file
C. software file
D. master file
Answer» E.
81.

Codes consisting of lines of varying widths or lengths that are computer-readable areknown as-

A. an ascii code
B. a magnetic tape
C. an ocr scanner
D. a bar code
Answer» E.
82.

Switching device of fifth generation computer is--------

A. vacuum tubes
B. transistors
C. ic
D. vlsi
Answer» E.
83.

COBOL is widely used in application s

A. commercial
B. scientific
C. space
D. mathematical
Answer» B. scientific
84.

........... computer are of large size

A. micro
B. mainframe
C. super
D. mini
Answer» C. super
85.

............. is the ability of a device to "jump" directly to the requested data

A. sequential access
B. random access
C. quick access
D. all of the above
Answer» C. quick access
86.

An area of a computer that temporarily holds data waiting to be processed is..........

A. cpu
B. memory
C. storage
D. file
Answer» C. storage
87.

Cathode Ray Tube is a form of.......

A. keyboard
B. mouse
C. monitor
D. mother board
Answer» D. mother board
88.

What is the name of the display feature that highlights are of the screen which requiresoperator attention?

A. pixel
B. reverse video
C. touch screen
D. cursor
Answer» C. touch screen
89.

What type of computers are client computers (most of the time) in a client-server system?

A. mainframe
B. mini-computer
C. microcomputer
D. pda
Answer» D. pda
90.

VDU is also called

A. screen
B. monitor
C. both 1 & 2
D. printer
Answer» D. printer
91.

Which of the following controls the process of interaction between the user and the operatingsystem?

A. user interface
B. language translator
C. platform
D. screen saver
Answer» B. language translator
92.

A self replicating program, similar to a virus which was taken from a 1970s science fictionnovel by John Bruner entitled the Shockwave Rider is

A. bug
B. vice
C. lice
D. worm
Answer» E.
93.

ASCII is a coding system that provides

A. 256 different characters
B. 512 different characters
C. 1024 different characters
D. 128 different characters
Answer» D. 128 different characters
94.

The ......... is the amount of data that a storage device can move from the storagemedium to the Computer per second

A. data migration rate
B. data digitizing rate
C. data transfer rate
D. data access rate
Answer» D. data access rate
95.

....are specific to users’ needs

A. system software
B. application software
C. assemblers
D. compilers
Answer» C. assemblers
96.

Collecting personal information and effectively posing as another individual is knownas the crime of:

A. spooling.
B. identity theft.
C. spoofing.
D. hacking.
Answer» C. spoofing.
97.

VOIP stands for..........

A. voice over ip
B. video over ip
C. viruses over ip
D. virtual over ip
Answer» B. video over ip
98.

............ Store data or information temporarily and pass it on as directed by the controlunit

A. address
B. register
C. number
D. memory
Answer» C. number
99.

............... is the science that attempts to produce machines that display the same type ofintelligence that humans do

A. nanoscience
B. nanotechnology
C. simulation
D. artificial intelligence (al)
Answer» E.
100.

............ translates and executes program at run time line by line

A. compiler
B. interpreter
C. linker
D. loader
Answer» C. linker