Explore topic-wise MCQs in Computer Science Mcqs.

This section includes 292 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Science Mcqs knowledge and support exam preparation. Choose a topic below to get started.

1.

First page of Website is termed as-

A. Homepage
B. Index
C. JAVA script
D. Bookmark
Answer» B. Index
2.

In which type of computer, data are represented as discrete signals.

A. Analog computer
B. Digital computer
C. both
D. Hybrid Computer
Answer» C. both
3.

A device that connects to a network without the use of cables is said to be-

A. Distributed
B. Free
C. centralized
D. None of these
Answer» E.
4.

IBM 1401 is

A. First Generation Computer
B. Second Generation Computer
C. Third Generation Computer
D. Fourth Generation Computer
Answer» C. Third Generation Computer
5.

What type of virus uses computer hosts to reproduce itself?

A. Time bomb
B. Worm
C. Melissa virus
D. Macro virus
Answer» C. Melissa virus
6.

are set of rules and procedures to control the data transmission over the internet

A. IP address
B. Domains
C. Protocol
D. Gateway
Answer» D. Gateway
7.

A DVD is an example of a (n)-

A. hard disk
B. optical disc
C. output device
D. solid-state storage device
Answer» C. output device
8.

translates and executes program at run time line by line

A. Compiler
B. Interpreter
C. Linker
D. Loader
Answer» C. Linker
9.

The Analytical Engine developed during First Generation of computers used ________as a memory unit

A. RAM
B. Floppies
C. Cards
D. Counter Wheels
Answer» E.
10.

COBOL is widely used in applications

A. Commercial
B. Scientific
C. Space
D. Mathematical
Answer» B. Scientific
11.

Operating system, editors, and debuggers comes under?

A. System Software
B. Application Software
C. Utilities
D. None of these
Answer» B. Application Software
12.

Which of the following is a read only memory storage device?

A. Floppy Disk
B. CDROM
C. Hard Disk
D. None of these
Answer» C. Hard Disk
13.

Who is known as the father of Computer Science?

A. Charles Babbage
B. Dr. Herman Hollerith
C. Howard Aiken
D. Blaise Pascal
Answer» B. Dr. Herman Hollerith
14.

Which technology is used in Compact disks?

A. Mechanical
B. Electrical
C. Electro Magnetic
D. Laser
Answer» E.
15.

Mostly which of the following device is used to carry user files?

A. Floppy Disk
B. Hard Disk
C. RAM
D. CDROM
Answer» B. Hard Disk
16.

Which device is used to backup the data?

A. Floppy Disk
B. Tape
C. Network Drive.
D. All of the above
Answer» E.
17.

In order to play and hear sound on a computer, one needs:

A. a sound card and speakers
B. a microphone
C. all of them required
D. none of them required
Answer» B. a microphone
18.

Which of the following have the fastest access time?

A. Semiconductor Memories
B. Magnetic Disks
C. Magnetic Tapes
D. Compact Disks
Answer» B. Magnetic Disks
19.

Which of the following are the cheapest memory devices in terms of Cost/Bit?

A. Semiconductor memories
B. Magnetic Disks
C. Compact Disks
D. Magnetic Tapes
Answer» D. Magnetic Tapes
20.

Which of the following is a programming language?

A. Lotus
B. Pascal
C. MS-Excel
D. Netscape
Answer» C. MS-Excel
21.

Which of the following are the best units of data on an external storage device?

A. Bits
B. Bytes
C. Hertz
D. Clock cycles
Answer» C. Hertz
22.

What is a compiler?

A. A compiler does a conversion line by line as the program is run
B. A compiler converts the whole of a higher level program code into machine code in one step
C. A compiler is a general purpose language providing very efficient execution
D. None of the above
Answer» C. A compiler is a general purpose language providing very efficient execution
23.

Which one is the Low Level Language?

A. Assembly
B. Visual Basic
C. Java
D. C++
Answer» B. Visual Basic
24.

Which is a volatile memory?

A. ROM
B. BIOS
C. PROM
D. RAM
Answer» E.
25.

The digital signals can be represented by

A. Binary Codes
B. 0 and 1
C. High and Low
D. all of the above
Answer» E.
26.

Which program can be used for email?

A. Internet Explorer
B. Outlook Express
C. NetMeeting
D. FrontPage
Answer» C. NetMeeting
27.

Modulator-demodulator is a device that converts:

A. Digital signal into analog signal
B. Analog signal into digital signal
C. Both A and B
D. None of these
Answer» D. None of these
28.

______________is used for scanning the pictures and putting them in digitized form in the computer.

A. CD-ROM
B. Plotter
C. Bar-coder
D. Scanner
Answer» E.
29.

Animator, 3D Studio, Corel Draw and Flash are___________

A. Word processors
B. Spreadsheet packages
C. Multimedia S/W
D. None of these
Answer» D. None of these
30.

Who built the first Mechanical Calculator

A. Joseph Marie Jacquard
B. John Mauchly
C. Blaise Pascal
D. Howard Aiken
Answer» D. Howard Aiken
31.

The programs which are as permanent as hardware and stored in ROM is known as

A. Hardware
B. Software
C. Firmware
D. ROM ware
Answer» D. ROM ware
32.

The earliest calculating devices are

A. Abacus
B. Clock
C. Difference Engine
D. None of these
Answer» B. Clock
33.

Memory unit is one part of

A. Input device
B. Control unit
C. Output device
D. Central Processing Unit
Answer» E.
34.

Cursor is a

A. Pixel
B. Thin blinking line
C. Pointing device
D. None of these
Answer» C. Pointing device
35.

Punched cards were first introduced by

A. Powers
B. Pascal
C. Jacquard
D. Herman Hollerith
Answer» E.
36.

Word length of a Personal Computer is

A. 4 bits
B. 8 bits
C. 16 bits
D. 64 bits
Answer» C. 16 bits
37.

ATM stands for?

A. Automatic Talking Machine
B. Automatic Teller Machine
C. Analog Teller Machine
D. Automatic Ticketing Machine
Answer» D. Automatic Ticketing Machine
38.

A normal CD-ROM usually can store up to __________data?

A. 680 KB
B. 680 Bytes
C. 680 MB
D. 680 GB
Answer» D. 680 GB
39.

The Second Generation Computer was based on_____________

A. Vacuum Tube
B. Silicon Chips
C. Transistor
D. Bio Chips
Answer» D. Bio Chips
40.

The Third Generation Computer was made with______________.

A. Vacuum Tube
B. Discrete Components
C. IC
D. Bio Chips
Answer» D. Bio Chips
41.

He BIOS is the abbreviation of ___________.

A. Basic Input Output System
B. Best Input Output System
C. Basic Input Output Symbol
D. Base Input Output System Answer
Answer» B. Best Input Output System
42.

What do you call a single point on a computer screen

A. Cell
B. Element
C. Pixel
D. Bit
Answer» D. Bit
43.

When a key is pressed on the keyboard, which standard is used for converting the keystroke into the corresponding bits?

A. ANSI
B. ASCII
C. EBCDIC
D. ISO
Answer» B. ASCII
44.

A Pixel is ………

A. A computer program that draws picture
B. A picture stored in secondary memory
C. The smallest resolvable part of a picture
D. None of these
Answer» D. None of these
45.

Which device is used as the standard pointing device in a Graphical User Environment?

A. Keyboard
B. Mouse
C. Joystick
D. Track ball
Answer» C. Joystick
46.

Which number system is usually followed in a typical 32-bit computer?

A. Binary
B. Decimal
C. Hexadecimal
D. Octal
Answer» B. Decimal
47.

Which of the following is not an output device?

A. Scanner
B. Printer
C. Flat Screen
D. Touch Screen
Answer» E.
48.

Which of the following devices have a limitation that we can only store information to it but cannot erase or modify it?

A. Floppy Disk
B. Hard Disk
C. Tape Drive
D. CDROM
Answer» E.
49.

Which of the following storage devices can store maximum amount of data?

A. Floppy Disk
B. Hard Disk
C. Compact Disk
D. Magneto Optic Disk
Answer» C. Compact Disk
50.

How was the generation of computer classified? .

A. by the device used in memory & processor
B. by the speed of computer
C. by the model of the computer
D. by the accuracy of computer
Answer» B. by the speed of computer