Short Questions Of Computer
Short Questions Of Computer Science
Computer Hardware :
Q: What
is the central processing unit (CPU)?
A: The
CPU is the brain of the computer, responsible for executing instructions and
performing calculations.
Q: What
is RAM in a computer?
A: RAM
(Random Access Memory) is a type of computer memory used for temporarily
storing data that the CPU is currently working on.
Q: What
is a hard drive?
A: A hard
drive is a storage device used to store data, files, and software on a
long-term basis.
Q: What
does CPU stand for?
A: CPU
stands for Central Processing Unit.
Q: What
are input devices?
A: Input
devices are hardware components like keyboards and mice that allow users to
provide data or commands to the computer.
Q: What
is a motherboard?
A: The
motherboard is the main circuit board of a computer, connecting and providing
power to various hardware components.
Q: What
is a graphics card (GPU)?
A: A
graphics card is a hardware component responsible for rendering images and
videos on a computer monitor.
Q: What
is a USB port used for?
A: USB
(Universal Serial Bus) ports are used to connect various external devices like
flash drives, keyboards, and printers to a computer.
Q: What
is a monitor?
A: A
monitor is an output device that displays visual information from the computer.
Q: What
is a network card?
A: A
network card, also known as a network adapter, allows a computer to connect to
a network, such as the internet.
Computer Software :
Q: What
is an operating system (OS)?
A: An
operating system is software that manages computer hardware and provides
services for computer programs.
Q: What
is the purpose of an antivirus program?
A: An
antivirus program is used to detect and remove malicious software (malware)
from a computer.
Q: What
is a web browser?
A: A web
browser is a software application used to access and view websites on the
internet.
Q: What
is the difference between software and hardware?
A:
Hardware refers to physical computer components, while software refers to
programs and instructions that run on the hardware.
Q: What
is a file extension?
A: A file
extension is a set of characters added to the end of a filename to indicate the
file's format or type.
Q: What
is a desktop application?
A: A
desktop application is software that runs on a user's computer and does not
require a web browser.
Q: What
is open-source software?
A:
Open-source software is software whose source code is freely available for
anyone to view, modify, and distribute.
Q: What
is the purpose of a word processing program?
A: A word
processing program is used for creating, editing, and formatting text
documents.
Q: What
is a software update?
A: A
software update is a release of improvements, bug fixes, or new features for a
software application.
Q: What
is a computer virus?
A: A
computer virus is a type of malware that can replicate itself and infect a
computer, often causing harm to the system.
Basic Computer Operations :
Q: What
is the desktop on a computer?
A: The
desktop is the graphical user interface on a computer screen where icons,
files, and shortcuts are displayed.
Q: What
is a file directory?
A: A file
directory is a location on a computer's storage device where files and folders
are organized.
Q: How do
you copy and paste text on a computer?
A: To
copy and paste text, you select the text, press Ctrl+C to copy, and Ctrl+V to
paste (or Command+C and Command+V on a Mac).
Q: What
is a shortcut key?
A: A
shortcut key is a key or key combination that performs a specific action or
command in a software application.
Q: What
is the function of the Start menu (Windows) or Dock (Mac)?
A: The
Start menu (Windows) or Dock (Mac) provides access to software applications,
files, and system settings.
Q: How do
you save a document in a word processing program?
A: To
save a document, you can typically click on the "Save" or "Save
As" option in the File menu or use the shortcut Ctrl+S (or Command+S on a
Mac).
Q: What
is a web address or URL?
A: A web
address or URL (Uniform Resource Locator) is the address used to locate a
specific webpage on the internet.
Q: What
is the purpose of the recycle bin (Windows) or trash (Mac)?
A: The
recycle bin (Windows) or trash (Mac) is a temporary storage location for
deleted files, allowing for potential recovery.
Q: How do
you close a software application on a computer?
A: You
can typically close an application by clicking the "X" button in the
top right corner of the window or using the Alt+F4 (Windows) or Command+Q (Mac)
shortcut.
Q: What
is a desktop wallpaper?
A: A
desktop wallpaper is the background image displayed on a computer's desktop.
Internet and Email :
Q: What
does "www" stand for in a web address?
A:
"www" stands for "World Wide Web."
Q: What
is a search engine?
A: A
search engine is a web-based tool that allows users to search for information
on the internet.
Q: What
is an email attachment?
A: An
email attachment is a file that is sent along with an email message.
Q: What
is a webmail service?
A: A
webmail service is an email service that allows users to access their email
accounts through a web browser.
Q: What
is a browser cache?
A: A
browser cache is a temporary storage area where web pages and images are stored
to improve page loading times.
Q: What
is an email spam filter?
A: An
email spam filter is a feature that automatically detects and filters out
unwanted or unsolicited email messages.
Q: What
is a hyperlink?
A: A
hyperlink is a clickable text or image that redirects the user to another web
page or resource.
Q: What
is a browser's homepage?
A: A
browser's homepage is the default web page that appears when you open the
browser.
Q: What
is a URL shortener?
A: A URL
shortener is a tool that converts long web addresses into shorter, more
manageable URLs.
Q: What
is a firewall in the context of internet security?
A: A
firewall is a security system that monitors and controls incoming and outgoing
network traffic to protect.
Basic Computer Questions And Answers
Multiple Choice Questions MCQ
1. What is a computer ?
A) A type of calculator
B) A device that performs tasks using algorithms
C) A complex musical instrument
D) A type of smartphone
Answer : (B)
2. Which of the following is NOT a primary function of a computer ?
A) Data storage
B) Data processing
C) Data transportation
D) Data output
Answer : (C)
3. What is the central processing unit (CPU) in a computer responsible for ?
A) Displaying images on the screen
B) Executing instructions and performing calculations
C) Storing data for future use
D) Connecting to the internet
Answer : (B)
4. Which component of a computer is often referred to as the "brain" of the system ?
A) Hard drive
B) Monitor
C) CPU
D) Keyboard
Answer : (C)
5. What is the primary function of the motherboard in a computer ?
A) Displaying graphics
B) Storing files and documents
C) Connecting all hardware components
D) Processing data
Answer : (C)
6. Which type of computer memory is volatile and loses its data when the power is turned off ?
A) RAM (Random Access Memory)
B) ROM (Read-Only Memory)
C) HDD (Hard Disk Drive)
D) SSD (Solid-State Drive)
Answer : (A)
7. What is the purpose of the operating system (OS) in a computer ?
A) Playing video games
B) Providing security against viruses
C) Managing hardware and software resources
D) Creating documents and spreadsheets
Answer : (C)
8. Which of the following is NOT an example of an input device ?
A) Keyboard
B) Mouse
C) Monitor
D) Webcam
Answer : (C)
9. Which component of a computer is responsible for storing long-term data even when the computer is powered off ?
A) RAM
B) CPU
C) HDD
D) Monitor
Answer : (C)
10. What is the purpose of a computer's graphical user interface (GUI) ?
A) To communicate with other computers
B) To provide a visual way for users to interact with the computer
C) To store and manage files
D) To perform complex calculations
Answer : (B)
11. Which term is used to describe malicious software that can harm or disrupt a computer system ?
A) Firewall
B) Browser
C) Virus
D) Keyboard
Answer : (C)
12. Which of the following is an example of an operating system ?
A) Microsoft Office
B) Google Chrome
C) Windows 10
D) Adobe Photoshop
Answer : (C)
13. What is the function of an internet browser on a computer ?
A) Playing video games
B) Editing documents
C) Browsing the web
D) Printing documents
Answer : (C)
14. What do IP addresses help computers do on the internet ?
A) Send emails
B) Connect to Wi-Fi
C) Identify and communicate with each other
D) Play online games
Answer : (C)
15. Which of the following is NOT a common computer operating system ?
A) Linux
B) macOS
C) Android
D) iOS
Answer : (D)
16. What type of memory is used for permanent storage of data and programs in a computer ?
A) RAM
B) ROM
C) CPU
D) Monitor
Answer : (B)
17. What is the term for a small program that performs a specific task on a computer ?
A) Algorithm
B) Software
C) App
D) Hardware
Answer : (C)
18. Which programming language is often used for web development ?
A) Java
B) Python
C) HTML
D) C++
Answer : (C)
19. Which component of a computer is responsible for generating output in the form of text and images ?
A) Monitor
B) Keyboard
C) CPU
D) RAM
Answer : (A)
20. What is cloud computing ?
A) Storing data on physical servers
B) Running software on a local computer
C) Accessing resources and services over the internet
D) Printing documents
Answer : (C)
21. What is the primary function of the CTRL+C keyboard shortcut ?
A) Close a program
B) Copy selected text or files
C) Cut selected text or files
D) Paste copied text or files
Answer : (B)
22. What is the purpose of antivirus software on a computer ?
A) Playing video games
B) Protecting against malware and viruses
C) Creating documents
D) Connecting to Wi-Fi
Answer : (B)
23. Which of the following is NOT a type of computer virus ?
A) Trojan horse
B) Worm
C) Keyboard
D) Spyware
Answer : (C)
24. What is a computer network ?
A) A group of people using the same computer
B) A collection of interconnected computers
C) A computer's power source
D) A type of computer monitor
Answer : (B)
25. What does CPU stand for ?
A) Central Programming Unit
B) Computer Peripheral Unit
C) Central Processing Unit
D) Computer Power Unit
Answer : (C)
26. What is the purpose of a computer's power supply unit (PSU) ?
A) Displaying graphics
B) Providing internet access
C) Supplying power to the computer's components
D) Managing software
Answer : (C)
27. Which of the following is a common web browser ?
A) Microsoft Word
B) Mozilla Firefox
C) Adobe Photoshop
D) Excel
Answer : (B)
28. What does RAM stand for in computing ?
A) Random Access Memory
B) Read-Only Memory
C) Remote Access Module
D) Rapid Application Management
Answer : (A)
29. Which of the following is NOT a common computer peripheral ?
A) Printer
B) Scanner
C) CPU
D) Webcam
Answer : (C)
30. What is the primary function of a computer's sound card ?
A) Displaying images on the screen
B) Producing sound and processing audio data
C) Connecting to the internet
D) Running software applications
Answer : (B)
31. What is the purpose of a computer's graphics processing unit (GPU) ?
A) Managing files and folders
B) Displaying images and videos
C) Connecting to a network
D) Processing text documents
Answer : (B)
32. Which of the following is NOT a type of computer input device ?
A) Mouse
B) Keyboard
C) Monitor
D) Webcam
Answer : (C)
33. What is the purpose of a computer's optical drive ?
A) Storing data in the cloud
B) Playing audio and video CDs/DVDs
C) Managing software applications
D) Processing mathematical calculations
Answer : (B)
34. What is an algorithm in the context of computing ?
A) A type of computer virus
B) A step-by-step set of instructions for solving a problem
C) A type of computer hardware
D) A type of computer programming language
Answer : (B)
35. What is the primary function of a computer's printer ?
A) Playing video games
B) Scanning documents
C) Producing hard copies of documents and images
D) Connecting to Wi-Fi
Answer : (C)
36. Which of the following is a common computer programming language ?
A) GPS
B) JPEG
C) Java
D) HTML
Answer : (C)
37. What is the purpose of a computer's firewall ?
A) Playing video games
B) Protecting the computer from unauthorized access and threats
C) Editing documents
D) Connecting to a printer
Answer : (B)
38. What is the term for software that allows users to browse and view websites on the internet ?
A) Internet Explorer
B) Microsoft Office
C) Email client
D) Web browser
Answer : (D)
39. Which of the following is a type of computer network that covers a small geographic area, such as a home or office ?
A) WAN (Wide Area Network)
B) LAN (Local Area Network)
C) MAN (Metropolitan Area Network)
D) VPN (Virtual Private Network)
Answer : (B)
40. What is the main purpose of an email client on a computer ?
A) Editing photos
B) Playing video games
C) Sending, receiving, and managing emails
D) Creating spreadsheets
Answer : (C)
41. What is the role of an operating system kernel in a computer ?
A) Displaying graphics
B) Managing the computer's hardware and resources
C) Connecting to the internet
D) Running software applications
Answer : (B)
42. Which of the following is an example of non-volatile memory ?
A) RAM
B) SSD
C) HDD
D) ROM
Answer : (D)
43. What is the primary function of a computer's BIOS (Basic Input/Output System) ?
A) Displaying images on the screen
B) Managing software applications
C) Initializing and booting up the computer
D) Connecting to a network
Answer : (C)
44. What does USB stand for in the context of computer hardware ?
A) Universal Serial Bus
B) United States of America
C) Underlying System Backup
D) User-Specific Buffer
Answer : (A)
45. What is a computer virus ?
A) A physical computer component
B) A type of programming language
C) Malicious software that can harm or disrupt a computer system
D) An operating system
Answer : (C)
46. What is the purpose of a computer's webcam ?
A) Playing video games
B) Recording audio
C) Capturing video and images for online communication
D) Managing files and folders
Answer : (C)
47. Which of the following is an example of cloud-based storage service ?
A) Microsoft Word
B) Google Drive
C) Adobe Photoshop
D) Excel
Answer : (B)
48. What is a computer mouse primarily used for ?
A) Sending emails
B) Playing video games
C) Providing input to the computer by moving a pointer on the screen
D) Scanning documents
Answer : (C)
49. What is the primary function of a computer's task manager ?
A) Browsing the web
B) Managing and monitoring running processes and applications
C) Playing music
D) Storing files
Answer : (B)
50. Who is often considered the "father of the computer" for his work on the Analytical Engine ?
A) Thomas Edison
B) Charles Babbage
C) Alan Turing
D) Bill Gates
Answer : (B)
51. What was the first programmable mechanical computer designed by Charles Babbage called ?
A) ENIAC
B) UNIVAC
C) Analytical Engine
D) Abacus
Answer : (C)
52. Which early computing device used punched cards for data input and was widely used for tabulating census data ?
A) Abacus
B) Analytical Engine
C) UNIVAC
D) Hollerith Tabulating Machine
Answer : (D)
53. The first electronic digital computer, ENIAC, was developed during which decade ?
A) 1920s
B) 1930s
C) 1940s
D) 1950s
Answer : (C)
54. Who were the inventors of the ENIAC computer ?
A) Alan Turing and John von Neumann
B) Bill Gates and Steve Jobs
C) J. Presper Eckert and John Mauchly
D) Charles Babbage and Ada Lovelace
Answer : (C)
55. What programming language was developed by Grace Hopper in the 1950s for the UNIVAC I computer ?
A) Python
B) COBOL
C) FORTRAN
D) C++
Answer : (B)
56. Which computer was the first to use transistors instead of vacuum tubes, reducing its size and power consumption ?
A) UNIVAC I
B) ENIAC
C) EDSAC
D) IBM 650
Answer : (C)
57. What term is often used to describe the period when microcomputers became affordable and accessible to individuals and businesses ?
A) Digital Age
B) Information Age
C) Silicon Age
D) Computer Revolution
Answer : (D)
58. The development of the computer mouse and graphical user interface (GUI) occurred at which research center ?
A) Xerox PARC
B) MIT
C) IBM Research
D) Apple Inc.
Answer : (A)
59. What was the first commercially successful microcomputer introduced in 1977 ?
A) IBM PC
B) Apple II
C) Commodore 64
D) Altair 8800
Answer : (B)
60. What was the name of the operating system developed by Microsoft for the IBM PC ?
A) Windows
B) MS-DOS
C) Unix
D) MacOS
Answer : (B)
61. Who co-founded Apple Inc. and played a significant role in the development of the Apple I and II computers ?
A) Bill Gates
B) Steve Wozniak
C) Steve Jobs
D) Tim Cook
Answer : (B)
62. What was the first message sent over the ARPANET, the precursor to the modern internet ?
A) "Hello, World!"
B) "What hath God wrought?"
C) "LOL"
D) "LOGIN"
Answer : (D)
63. What was the name of the first web browser and editor created by Tim Berners-Lee ?
A) Internet Explorer
B) Mozilla Firefox
C) WorldWideWeb (Nexus)
D) Google Chrome
Answer : (C)
64. Who is credited with the invention of the World Wide Web ?
A) Al Gore
B) Tim Berners-Lee
C) Larry Page
D) Mark Zuckerberg
Answer : (B)
65. What was the primary purpose of the first computer networks like ARPANET ?
A) Online shopping
B) Social networking
C) Military communication and research
D) Entertainment
Answer : (C)
66. In what year was the first email sent over a computer network ?
A) 1971
B) 1985
C) 1998
D) 2003
Answer : (A)
67. What is the significance of Moore's Law in the history of computers ?
A) It predicted the creation of the internet.
B) It described the exponential growth of computer processing power.
C) It established the first computer programming language.
D) It defined the concept of artificial intelligence.
Answer : (B)
68. Which company introduced the first commercially successful personal computer with a graphical user interface (GUI) ?
A) Apple Inc.
B) IBM
C) Microsoft
D) Xerox
Answer : (A)
69. What was the name of the first microprocessor, introduced by Intel in 1971 ?
A) Intel 8080
B) Intel 386
C) Intel 4004
D) Intel 80286
Answer : (C)
70. Which computer scientist is often called the "father of artificial intelligence" and developed the Turing test ?
A) Alan Turing
B) John von Neumann
C) Grace Hopper
D) Douglas Engelbart
Answer : (A)
71. What was the first successful video game, created in 1961 by Steve Russell ?
A) Pong
B) Space Invaders
C) Asteroids
D) Spacewar!
Answer : (D)
72. Which computer company introduced the concept of a personal computer with the Apple I ?
A) IBM
B) Apple Inc.
C) Microsoft
D) Xerox
Answer : (B)
73. Who is known for developing the first high-level programming language, FORTRAN ?
A) Ada Lovelace
B) Grace Hopper
C) Alan Turing
D) John von Neumann
Answer : (B)
74. Which early computer was used by NASA for the Apollo program and the moon landing in 1969 ?
A) UNIVAC I
B) ENIAC
C) IBM 650
D) IBM System/360
Answer : (A)
75. What does GUI stand for in the context of computers ?
A) Global Understanding Interface
B) Graphical User Interface
C) General Utility Integration
D) Great Universal Interface
Answer : (B)
76. Who is considered the "father of modern computer science" and laid the foundation for computer algorithms and computation theory ?
A) Charles Babbage
B) Alan Turing
C) John Mauchly
D) Steve Jobs
Answer : (B)
77. Which computer, introduced in 1984, popularized the use of the mouse and GUI ?
A) IBM PC
B) Commodore 64
C) Apple Macintosh
D) Atari 2600
Answer : (C)
78. In what decade did the concept of virtual reality (VR) computing emerge ?
A) 1960s
B) 1980s
C) 2000s
D) 2010s
Answer : (A)
79. What was the name of the first personal computer introduced by IBM in 1981 ?
A) IBM 360
B) IBM PCjr
C) IBM XT
D) IBM 5150
Answer : (D)
80. Which computer scientist and engineer is credited with inventing the concept of the computer mouse in the 1960s ?
A) Alan Turing
B) Tim Berners-Lee
C) Douglas Engelbart
D) John von Neumann
Answer : (C)
81. What was the primary purpose of the Electronic Numerical Integrator and Computer (ENIAC), one of the earliest electronic computers ?
A) Playing video games
B) Solving mathematical calculations and simulations
C) Storing large amounts of data
D) Networking with other computers
Answer : (B)
82. What was the first commercially successful personal computer to include a color display ?
A) Apple II
B) IBM PC
C) Commodore 64
D) Atari 400
Answer : (A)
83. Who co-founded Microsoft and played a significant role in the development of the personal computer industry ?
A) Steve Wozniak
B) Steve Jobs
C) Bill Gates
D) Tim Berners-Lee
Answer : (C)
84. What event marked the beginning of the modern era of computing and is often considered the first "computer bug" ?
A) The invention of the microprocessor
B) The introduction of the internet
C) The first successful execution of a computer program
D) The creation of the first computer virus
Answer : (C)
85. Which early computer scientist is known for her work on the first algorithm intended to be processed by a machine and is often considered the world's first programmer ?
A) Alan Turing
B) Charles Babbage
C) Ada Lovelace
D) Grace Hopper
Answer : (C)
86. What is the name of the computer system that played a crucial role in breaking encrypted German messages during World War II ?
A) ENIAC
B) UNIVAC
C) Colossus
D) ABC
Answer : (C)
87. Which computing device, developed in ancient China, was used for arithmetic calculations and remains one of the earliest examples of a mechanical calculator ?
A) Abacus
B) Slide rule
C) Pascaline
D) Analytical Engine
Answer : (A)
88. Who coined the term "computer bug" after finding a moth trapped in a relay of the Mark II computer in 1947 ?
A) Grace Hopper
B) Alan Turing
C) John Mauchly
D) Tim Berners-Lee
Answer : (A)
89. What was the name of the first computer that used vacuum tubes and was completed in 1945 ?
A) UNIVAC I
B) ENIAC
C) IBM 650
D) EDSAC
Answer : (B)
90. In what year was the first successful integrated circuit (microchip) developed, marking a significant advancement in computer technology ?
A) 1947
B) 1958
C) 1969
D) 1975
Answer : (B)
91. Who was the mathematician and logician who created the concept of a theoretical computing machine, now known as a Turing machine ?
A) Alan Turing
B) John von Neumann
C) Charles Babbage
D) Grace Hopper
Answer : (A)
92. What was the first computer virus to be discovered and widely reported in 1982 ?
A) Melissa
B) ILOVEYOU
C) Brain
D) Elk Cloner
Answer : (C)
93. What was the name of the first commercially successful laptop computer, introduced by IBM in 1986 ?
A) ThinkPad
B) MacBook
C) DynaBook
D) Toshiba T1100
Answer : (D)
94. What is the term for a large-scale, integrated computer system used for business and scientific applications, introduced in the 1960s ?
A) Minicomputer
B) Microcomputer
C) Mainframe
D) Supercomputer
Answer : (C)
95. Who is known for developing the first high-level programming language, COBOL ?
A) Grace Hopper
B) Alan Turing
C) John Mauchly
D) Charles Babbage
Answer : (A)
96. What was the name of the first personal computer to be sold as a fully assembled product and not as a kit ?
A) Apple I
B) Altair 8800
C) Commodore PET
D) Apple II
Answer : (C)
97. Which company introduced the first smartphone with a touch screen and graphical interface in 2007 ?
A) Nokia
B) Blackberry
C) Apple Inc.
D) Samsung
Answer : (C)
98. What is the significance of the Turing test in the history of artificial intelligence ?
A) It was the first computer program ever written.
B) It is a benchmark for evaluating a machine's ability to exhibit intelligent behavior indistinguishable from that of a human.
C) It was used to create the first computer virus.
D) It introduced the concept of virtual reality.
Answer : (B)
99. Which type of computer is known for its compact size and portability, designed for personal use ?
A) Mainframe computer
B) Supercomputer
C) Minicomputer
D) Microcomputer
Answer : (D)
100. What category of computers is designed for scientific and engineering applications, such as weather forecasting and simulations ?
A) Mainframes
B) Supercomputers
C) Microcomputers
D) Workstations
Answer : (B)
101. Which type of computer is typically used for complex mathematical calculations and scientific research ?
A) Personal computer (PC)
B) Minicomputer
C) Mainframe computer
D) Supercomputer
Answer : (D)
102. What term describes computers that are designed for a specific task or function, such as controlling industrial machinery ?
A) Mainframes
B) Supercomputers
C) Embedded computers
D) Workstations
Answer : (C)
103. Which type of computer is known for its high processing power and ability to handle large volumes of data and transactions ?
A) Microcomputer
B) Minicomputer
C) Supercomputer
D) Workstation
Answer : (C)
104. What are ATMs (Automated Teller Machines) examples of ?
A) Mainframes
B) Minicomputers
C) Supercomputers
D) Embedded computers
Answer : (D)
105. What category of computers is often used for scientific and engineering applications, such as 3D rendering and graphic design ?
A) Personal computers
B) Workstations
C) Minicomputers
D) Supercomputers
Answer : (B)
106. Which type of computer is typically used by businesses and organizations to manage large databases and run applications ?
A) Personal computers
B) Workstations
C) Mainframe computers
D) Supercomputers
Answer : (C)
107. What term is used for a type of computer designed to provide network services and manage resources for a group of users ?
A) Personal computer
B) Workstation
C) Server
D) Supercomputer
Answer : (C)
108. What type of computer is the Raspberry Pi, known for its small size and versatility ?
A) Microcomputer
B) Mainframe computer
C) Supercomputer
D) Minicomputer
Answer : (A)
109. Which type of computer is used for high-performance tasks like 3D modeling, video editing, and scientific simulations ?
A) Personal computer
B) Workstation
C) Mainframe computer
D) Microcomputer
Answer : (B)
110. What type of computer is typically found in cars, appliances, and consumer electronics ?
A) Supercomputer
B) Microcomputer
C) Minicomputer
D) Mainframe computer
Answer : (B)
111. Which type of computer is used for managing and controlling network resources, including data storage and user access ?
A) Personal computer
B) Workstation
C) Server
D) Minicomputer
Answer : (C)
112. What is the primary function of a mainframe computer ?
A) Running personal productivity software
B) Managing network resources
C) Handling large-scale data processing and transactions
D) Performing scientific simulations
Answer : (C)
113. What type of computer is designed for specialized tasks like controlling a robotic arm on an assembly line ?
A) Mainframe computer
B) Supercomputer
C) Embedded computer
D) Workstation
Answer : (C)
114. What is the primary characteristic of a supercomputer ?
A) Compact size and portability
B) High processing power and ability to handle large datasets
C) Personal use for productivity tasks
D) Use in industrial automation
Answer : (B)
115. Which type of computer is often used for personal tasks such as word processing, web browsing, and gaming ?
A) Mainframe computer
B) Supercomputer
C) Personal computer (PC)
D) Minicomputer
Answer : (C)
116. What category of computers is commonly found in data centers and used for web hosting and cloud services ?
A) Personal computers
B) Workstations
C) Servers
D) Mainframes
Answer : (C)
117. What type of computer is used for complex scientific and engineering simulations, such as climate modeling and nuclear research ?
A) Supercomputer
B) Minicomputer
C) Microcomputer
D) Workstation
Answer : (A)
118. Which type of computer is known for its reliability and fault tolerance, often used in critical systems like air traffic control ?
A) Supercomputer
B) Mainframe computer
C) Microcomputer
D) Minicomputer
Answer : (B)
119. What is the primary purpose of microcomputers ?
A) Scientific research
B) Industrial automation
C) Personal and general-purpose computing
D) Managing network resources
Answer : (C)
120. What type of computer is used for real-time control of manufacturing processes and robots on factory floors ?
A) Mainframe computer
B) Supercomputer
C) Embedded computer
D) Workstation
Answer : (C)
121. Which category of computers is often associated with the term "client-server" architecture in networked systems ?
A) Supercomputers
B) Mainframes
C) Microcomputers
D) Servers
Answer : (D)
122. What type of computer is designed for scientific, technical, or artistic tasks, often equipped with powerful graphics capabilities ?
A) Personal computer (PC)
B) Workstation
C) Minicomputer
D) Mainframe computer
Answer : (B)
1. What is a computer ?
A) A type of calculator
B) A device that performs tasks using algorithms
C) A complex musical instrument
D) A type of smartphone
Answer : (B)
2. Which of the following is NOT a primary function of a computer ?
A) Data storage
B) Data processing
C) Data transportation
D) Data output
Answer : (C)
3. What is the central processing unit (CPU) in a computer responsible for ?
A) Displaying images on the screen
B) Executing instructions and performing calculations
C) Storing data for future use
D) Connecting to the internet
Answer : (B)
4. Which component of a computer is often referred to as the "brain" of the system ?
A) Hard drive
B) Monitor
C) CPU
D) Keyboard
Answer : (C)
5. What is the primary function of the motherboard in a computer ?
A) Displaying graphics
B) Storing files and documents
C) Connecting all hardware components
D) Processing data
Answer : (C)
6. Which type of computer memory is volatile and loses its data when the power is turned off ?
A) RAM (Random Access Memory)
B) ROM (Read-Only Memory)
C) HDD (Hard Disk Drive)
D) SSD (Solid-State Drive)
Answer : (A)
7. What is the purpose of the operating system (OS) in a computer ?
A) Playing video games
B) Providing security against viruses
C) Managing hardware and software resources
D) Creating documents and spreadsheets
Answer : (C)
8. Which of the following is NOT an example of an input device ?
A) Keyboard
B) Mouse
C) Monitor
D) Webcam
Answer : (C)
9. Which component of a computer is responsible for storing long-term data even when the computer is powered off ?
A) RAM
B) CPU
C) HDD
D) Monitor
Answer : (C)
10. What is the purpose of a computer's graphical user interface (GUI) ?
A) To communicate with other computers
B) To provide a visual way for users to interact with the computer
C) To store and manage files
D) To perform complex calculations
Answer : (B)
11. Which term is used to describe malicious software that can harm or disrupt a computer system ?
A) Firewall
B) Browser
C) Virus
D) Keyboard
Answer : (C)
12. Which of the following is an example of an operating system ?
A) Microsoft Office
B) Google Chrome
C) Windows 10
D) Adobe Photoshop
Answer : (C)
13. What is the function of an internet browser on a computer ?
A) Playing video games
B) Editing documents
C) Browsing the web
D) Printing documents
Answer : (C)
14. What do IP addresses help computers do on the internet ?
A) Send emails
B) Connect to Wi-Fi
C) Identify and communicate with each other
D) Play online games
Answer : (C)
15. Which of the following is NOT a common computer operating system ?
A) Linux
B) macOS
C) Android
D) iOS
Answer : (D)
16. What type of memory is used for permanent storage of data and programs in a computer ?
A) RAM
B) ROM
C) CPU
D) Monitor
Answer : (B)
17. What is the term for a small program that performs a specific task on a computer ?
A) Algorithm
B) Software
C) App
D) Hardware
Answer : (C)
18. Which programming language is often used for web development ?
A) Java
B) Python
C) HTML
D) C++
Answer : (C)
19. Which component of a computer is responsible for generating output in the form of text and images ?
A) Monitor
B) Keyboard
C) CPU
D) RAM
Answer : (A)
20. What is cloud computing ?
A) Storing data on physical servers
B) Running software on a local computer
C) Accessing resources and services over the internet
D) Printing documents
Answer : (C)
21. What is the primary function of the CTRL+C keyboard shortcut ?
A) Close a program
B) Copy selected text or files
C) Cut selected text or files
D) Paste copied text or files
Answer : (B)
22. What is the purpose of antivirus software on a computer ?
A) Playing video games
B) Protecting against malware and viruses
C) Creating documents
D) Connecting to Wi-Fi
Answer : (B)
23. Which of the following is NOT a type of computer virus ?
A) Trojan horse
B) Worm
C) Keyboard
D) Spyware
Answer : (C)
24. What is a computer network ?
A) A group of people using the same computer
B) A collection of interconnected computers
C) A computer's power source
D) A type of computer monitor
Answer : (B)
25. What does CPU stand for ?
A) Central Programming Unit
B) Computer Peripheral Unit
C) Central Processing Unit
D) Computer Power Unit
Answer : (C)
26. What is the purpose of a computer's power supply unit (PSU) ?
A) Displaying graphics
B) Providing internet access
C) Supplying power to the computer's components
D) Managing software
Answer : (C)
27. Which of the following is a common web browser ?
A) Microsoft Word
B) Mozilla Firefox
C) Adobe Photoshop
D) Excel
Answer : (B)
28. What does RAM stand for in computing ?
A) Random Access Memory
B) Read-Only Memory
C) Remote Access Module
D) Rapid Application Management
Answer : (A)
29. Which of the following is NOT a common computer peripheral ?
A) Printer
B) Scanner
C) CPU
D) Webcam
Answer : (C)
30. What is the primary function of a computer's sound card ?
A) Displaying images on the screen
B) Producing sound and processing audio data
C) Connecting to the internet
D) Running software applications
Answer : (B)
31. What is the purpose of a computer's graphics processing unit (GPU) ?
A) Managing files and folders
B) Displaying images and videos
C) Connecting to a network
D) Processing text documents
Answer : (B)
32. Which of the following is NOT a type of computer input device ?
A) Mouse
B) Keyboard
C) Monitor
D) Webcam
Answer : (C)
33. What is the purpose of a computer's optical drive ?
A) Storing data in the cloud
B) Playing audio and video CDs/DVDs
C) Managing software applications
D) Processing mathematical calculations
Answer : (B)
34. What is an algorithm in the context of computing ?
A) A type of computer virus
B) A step-by-step set of instructions for solving a problem
C) A type of computer hardware
D) A type of computer programming language
Answer : (B)
35. What is the primary function of a computer's printer ?
A) Playing video games
B) Scanning documents
C) Producing hard copies of documents and images
D) Connecting to Wi-Fi
Answer : (C)
36. Which of the following is a common computer programming language ?
A) GPS
B) JPEG
C) Java
D) HTML
Answer : (C)
37. What is the purpose of a computer's firewall ?
A) Playing video games
B) Protecting the computer from unauthorized access and threats
C) Editing documents
D) Connecting to a printer
Answer : (B)
38. What is the term for software that allows users to browse and view websites on the internet ?
A) Internet Explorer
B) Microsoft Office
C) Email client
D) Web browser
Answer : (D)
39. Which of the following is a type of computer network that covers a small geographic area, such as a home or office ?
A) WAN (Wide Area Network)
B) LAN (Local Area Network)
C) MAN (Metropolitan Area Network)
D) VPN (Virtual Private Network)
Answer : (B)
40. What is the main purpose of an email client on a computer ?
A) Editing photos
B) Playing video games
C) Sending, receiving, and managing emails
D) Creating spreadsheets
Answer : (C)
41. What is the role of an operating system kernel in a computer ?
A) Displaying graphics
B) Managing the computer's hardware and resources
C) Connecting to the internet
D) Running software applications
Answer : (B)
42. Which of the following is an example of non-volatile memory ?
A) RAM
B) SSD
C) HDD
D) ROM
Answer : (D)
43. What is the primary function of a computer's BIOS (Basic Input/Output System) ?
A) Displaying images on the screen
B) Managing software applications
C) Initializing and booting up the computer
D) Connecting to a network
Answer : (C)
44. What does USB stand for in the context of computer hardware ?
A) Universal Serial Bus
B) United States of America
C) Underlying System Backup
D) User-Specific Buffer
Answer : (A)
45. What is a computer virus ?
A) A physical computer component
B) A type of programming language
C) Malicious software that can harm or disrupt a computer system
D) An operating system
Answer : (C)
46. What is the purpose of a computer's webcam ?
A) Playing video games
B) Recording audio
C) Capturing video and images for online communication
D) Managing files and folders
Answer : (C)
47. Which of the following is an example of cloud-based storage service ?
A) Microsoft Word
B) Google Drive
C) Adobe Photoshop
D) Excel
Answer : (B)
48. What is a computer mouse primarily used for ?
A) Sending emails
B) Playing video games
C) Providing input to the computer by moving a pointer on the screen
D) Scanning documents
Answer : (C)
49. What is the primary function of a computer's task manager ?
A) Browsing the web
B) Managing and monitoring running processes and applications
C) Playing music
D) Storing files
Answer : (B)
50. Who is often considered the "father of the computer" for his work on the Analytical Engine ?
A) Thomas Edison
B) Charles Babbage
C) Alan Turing
D) Bill Gates
Answer : (B)
51. What was the first programmable mechanical computer designed by Charles Babbage called ?
A) ENIAC
B) UNIVAC
C) Analytical Engine
D) Abacus
Answer : (C)
52. Which early computing device used punched cards for data input and was widely used for tabulating census data ?
A) Abacus
B) Analytical Engine
C) UNIVAC
D) Hollerith Tabulating Machine
Answer : (D)
53. The first electronic digital computer, ENIAC, was developed during which decade ?
A) 1920s
B) 1930s
C) 1940s
D) 1950s
Answer : (C)
54. Who were the inventors of the ENIAC computer ?
A) Alan Turing and John von Neumann
B) Bill Gates and Steve Jobs
C) J. Presper Eckert and John Mauchly
D) Charles Babbage and Ada Lovelace
Answer : (C)
55. What programming language was developed by Grace Hopper in the 1950s for the UNIVAC I computer ?
A) Python
B) COBOL
C) FORTRAN
D) C++
Answer : (B)
56. Which computer was the first to use transistors instead of vacuum tubes, reducing its size and power consumption ?
A) UNIVAC I
B) ENIAC
C) EDSAC
D) IBM 650
Answer : (C)
57. What term is often used to describe the period when microcomputers became affordable and accessible to individuals and businesses ?
A) Digital Age
B) Information Age
C) Silicon Age
D) Computer Revolution
Answer : (D)
58. The development of the computer mouse and graphical user interface (GUI) occurred at which research center ?
A) Xerox PARC
B) MIT
C) IBM Research
D) Apple Inc.
Answer : (A)
59. What was the first commercially successful microcomputer introduced in 1977 ?
A) IBM PC
B) Apple II
C) Commodore 64
D) Altair 8800
Answer : (B)
60. What was the name of the operating system developed by Microsoft for the IBM PC ?
A) Windows
B) MS-DOS
C) Unix
D) MacOS
Answer : (B)
61. Who co-founded Apple Inc. and played a significant role in the development of the Apple I and II computers ?
A) Bill Gates
B) Steve Wozniak
C) Steve Jobs
D) Tim Cook
Answer : (B)
62. What was the first message sent over the ARPANET, the precursor to the modern internet ?
A) "Hello, World!"
B) "What hath God wrought?"
C) "LOL"
D) "LOGIN"
Answer : (D)
63. What was the name of the first web browser and editor created by Tim Berners-Lee ?
A) Internet Explorer
B) Mozilla Firefox
C) WorldWideWeb (Nexus)
D) Google Chrome
Answer : (C)
64. Who is credited with the invention of the World Wide Web ?
A) Al Gore
B) Tim Berners-Lee
C) Larry Page
D) Mark Zuckerberg
Answer : (B)
65. What was the primary purpose of the first computer networks like ARPANET ?
A) Online shopping
B) Social networking
C) Military communication and research
D) Entertainment
Answer : (C)
66. In what year was the first email sent over a computer network ?
A) 1971
B) 1985
C) 1998
D) 2003
Answer : (A)
67. What is the significance of Moore's Law in the history of computers ?
A) It predicted the creation of the internet.
B) It described the exponential growth of computer processing power.
C) It established the first computer programming language.
D) It defined the concept of artificial intelligence.
Answer : (B)
68. Which company introduced the first commercially successful personal computer with a graphical user interface (GUI) ?
A) Apple Inc.
B) IBM
C) Microsoft
D) Xerox
Answer : (A)
69. What was the name of the first microprocessor, introduced by Intel in 1971 ?
A) Intel 8080
B) Intel 386
C) Intel 4004
D) Intel 80286
Answer : (C)
70. Which computer scientist is often called the "father of artificial intelligence" and developed the Turing test ?
A) Alan Turing
B) John von Neumann
C) Grace Hopper
D) Douglas Engelbart
Answer : (A)
71. What was the first successful video game, created in 1961 by Steve Russell ?
A) Pong
B) Space Invaders
C) Asteroids
D) Spacewar!
Answer : (D)
72. Which computer company introduced the concept of a personal computer with the Apple I ?
A) IBM
B) Apple Inc.
C) Microsoft
D) Xerox
Answer : (B)
73. Who is known for developing the first high-level programming language, FORTRAN ?
A) Ada Lovelace
B) Grace Hopper
C) Alan Turing
D) John von Neumann
Answer : (B)
74. Which early computer was used by NASA for the Apollo program and the moon landing in 1969 ?
A) UNIVAC I
B) ENIAC
C) IBM 650
D) IBM System/360
Answer : (A)
75. What does GUI stand for in the context of computers ?
A) Global Understanding Interface
B) Graphical User Interface
C) General Utility Integration
D) Great Universal Interface
Answer : (B)
76. Who is considered the "father of modern computer science" and laid the foundation for computer algorithms and computation theory ?
A) Charles Babbage
B) Alan Turing
C) John Mauchly
D) Steve Jobs
Answer : (B)
77. Which computer, introduced in 1984, popularized the use of the mouse and GUI ?
A) IBM PC
B) Commodore 64
C) Apple Macintosh
D) Atari 2600
Answer : (C)
78. In what decade did the concept of virtual reality (VR) computing emerge ?
A) 1960s
B) 1980s
C) 2000s
D) 2010s
Answer : (A)
79. What was the name of the first personal computer introduced by IBM in 1981 ?
A) IBM 360
B) IBM PCjr
C) IBM XT
D) IBM 5150
Answer : (D)
80. Which computer scientist and engineer is credited with inventing the concept of the computer mouse in the 1960s ?
A) Alan Turing
B) Tim Berners-Lee
C) Douglas Engelbart
D) John von Neumann
Answer : (C)
81. What was the primary purpose of the Electronic Numerical Integrator and Computer (ENIAC), one of the earliest electronic computers ?
A) Playing video games
B) Solving mathematical calculations and simulations
C) Storing large amounts of data
D) Networking with other computers
Answer : (B)
82. What was the first commercially successful personal computer to include a color display ?
A) Apple II
B) IBM PC
C) Commodore 64
D) Atari 400
Answer : (A)
83. Who co-founded Microsoft and played a significant role in the development of the personal computer industry ?
A) Steve Wozniak
B) Steve Jobs
C) Bill Gates
D) Tim Berners-Lee
Answer : (C)
84. What event marked the beginning of the modern era of computing and is often considered the first "computer bug" ?
A) The invention of the microprocessor
B) The introduction of the internet
C) The first successful execution of a computer program
D) The creation of the first computer virus
Answer : (C)
85. Which early computer scientist is known for her work on the first algorithm intended to be processed by a machine and is often considered the world's first programmer ?
A) Alan Turing
B) Charles Babbage
C) Ada Lovelace
D) Grace Hopper
Answer : (C)
86. What is the name of the computer system that played a crucial role in breaking encrypted German messages during World War II ?
A) ENIAC
B) UNIVAC
C) Colossus
D) ABC
Answer : (C)
87. Which computing device, developed in ancient China, was used for arithmetic calculations and remains one of the earliest examples of a mechanical calculator ?
A) Abacus
B) Slide rule
C) Pascaline
D) Analytical Engine
Answer : (A)
88. Who coined the term "computer bug" after finding a moth trapped in a relay of the Mark II computer in 1947 ?
A) Grace Hopper
B) Alan Turing
C) John Mauchly
D) Tim Berners-Lee
Answer : (A)
89. What was the name of the first computer that used vacuum tubes and was completed in 1945 ?
A) UNIVAC I
B) ENIAC
C) IBM 650
D) EDSAC
Answer : (B)
90. In what year was the first successful integrated circuit (microchip) developed, marking a significant advancement in computer technology ?
A) 1947
B) 1958
C) 1969
D) 1975
Answer : (B)
91. Who was the mathematician and logician who created the concept of a theoretical computing machine, now known as a Turing machine ?
A) Alan Turing
B) John von Neumann
C) Charles Babbage
D) Grace Hopper
Answer : (A)
92. What was the first computer virus to be discovered and widely reported in 1982 ?
A) Melissa
B) ILOVEYOU
C) Brain
D) Elk Cloner
Answer : (C)
93. What was the name of the first commercially successful laptop computer, introduced by IBM in 1986 ?
A) ThinkPad
B) MacBook
C) DynaBook
D) Toshiba T1100
Answer : (D)
94. What is the term for a large-scale, integrated computer system used for business and scientific applications, introduced in the 1960s ?
A) Minicomputer
B) Microcomputer
C) Mainframe
D) Supercomputer
Answer : (C)
95. Who is known for developing the first high-level programming language, COBOL ?
A) Grace Hopper
B) Alan Turing
C) John Mauchly
D) Charles Babbage
Answer : (A)
96. What was the name of the first personal computer to be sold as a fully assembled product and not as a kit ?
A) Apple I
B) Altair 8800
C) Commodore PET
D) Apple II
Answer : (C)
97. Which company introduced the first smartphone with a touch screen and graphical interface in 2007 ?
A) Nokia
B) Blackberry
C) Apple Inc.
D) Samsung
Answer : (C)
98. What is the significance of the Turing test in the history of artificial intelligence ?
A) It was the first computer program ever written.
B) It is a benchmark for evaluating a machine's ability to exhibit intelligent behavior indistinguishable from that of a human.
C) It was used to create the first computer virus.
D) It introduced the concept of virtual reality.
Answer : (B)
99. Which type of computer is known for its compact size and portability, designed for personal use ?
A) Mainframe computer
B) Supercomputer
C) Minicomputer
D) Microcomputer
Answer : (D)
100. What category of computers is designed for scientific and engineering applications, such as weather forecasting and simulations ?
A) Mainframes
B) Supercomputers
C) Microcomputers
D) Workstations
Answer : (B)
101. Which type of computer is typically used for complex mathematical calculations and scientific research ?
A) Personal computer (PC)
B) Minicomputer
C) Mainframe computer
D) Supercomputer
Answer : (D)
102. What term describes computers that are designed for a specific task or function, such as controlling industrial machinery ?
A) Mainframes
B) Supercomputers
C) Embedded computers
D) Workstations
Answer : (C)
103. Which type of computer is known for its high processing power and ability to handle large volumes of data and transactions ?
A) Microcomputer
B) Minicomputer
C) Supercomputer
D) Workstation
Answer : (C)
104. What are ATMs (Automated Teller Machines) examples of ?
A) Mainframes
B) Minicomputers
C) Supercomputers
D) Embedded computers
Answer : (D)
105. What category of computers is often used for scientific and engineering applications, such as 3D rendering and graphic design ?
A) Personal computers
B) Workstations
C) Minicomputers
D) Supercomputers
Answer : (B)
106. Which type of computer is typically used by businesses and organizations to manage large databases and run applications ?
A) Personal computers
B) Workstations
C) Mainframe computers
D) Supercomputers
Answer : (C)
107. What term is used for a type of computer designed to provide network services and manage resources for a group of users ?
A) Personal computer
B) Workstation
C) Server
D) Supercomputer
Answer : (C)
108. What type of computer is the Raspberry Pi, known for its small size and versatility ?
A) Microcomputer
B) Mainframe computer
C) Supercomputer
D) Minicomputer
Answer : (A)
109. Which type of computer is used for high-performance tasks like 3D modeling, video editing, and scientific simulations ?
A) Personal computer
B) Workstation
C) Mainframe computer
D) Microcomputer
Answer : (B)
110. What type of computer is typically found in cars, appliances, and consumer electronics ?
A) Supercomputer
B) Microcomputer
C) Minicomputer
D) Mainframe computer
Answer : (B)
111. Which type of computer is used for managing and controlling network resources, including data storage and user access ?
A) Personal computer
B) Workstation
C) Server
D) Minicomputer
Answer : (C)
112. What is the primary function of a mainframe computer ?
A) Running personal productivity software
B) Managing network resources
C) Handling large-scale data processing and transactions
D) Performing scientific simulations
Answer : (C)
113. What type of computer is designed for specialized tasks like controlling a robotic arm on an assembly line ?
A) Mainframe computer
B) Supercomputer
C) Embedded computer
D) Workstation
Answer : (C)
114. What is the primary characteristic of a supercomputer ?
A) Compact size and portability
B) High processing power and ability to handle large datasets
C) Personal use for productivity tasks
D) Use in industrial automation
Answer : (B)
115. Which type of computer is often used for personal tasks such as word processing, web browsing, and gaming ?
A) Mainframe computer
B) Supercomputer
C) Personal computer (PC)
D) Minicomputer
Answer : (C)
116. What category of computers is commonly found in data centers and used for web hosting and cloud services ?
A) Personal computers
B) Workstations
C) Servers
D) Mainframes
Answer : (C)
117. What type of computer is used for complex scientific and engineering simulations, such as climate modeling and nuclear research ?
A) Supercomputer
B) Minicomputer
C) Microcomputer
D) Workstation
Answer : (A)
118. Which type of computer is known for its reliability and fault tolerance, often used in critical systems like air traffic control ?
A) Supercomputer
B) Mainframe computer
C) Microcomputer
D) Minicomputer
Answer : (B)
119. What is the primary purpose of microcomputers ?
A) Scientific research
B) Industrial automation
C) Personal and general-purpose computing
D) Managing network resources
Answer : (C)
120. What type of computer is used for real-time control of manufacturing processes and robots on factory floors ?
A) Mainframe computer
B) Supercomputer
C) Embedded computer
D) Workstation
Answer : (C)
121. Which category of computers is often associated with the term "client-server" architecture in networked systems ?
A) Supercomputers
B) Mainframes
C) Microcomputers
D) Servers
Answer : (D)
122. What type of computer is designed for scientific, technical, or artistic tasks, often equipped with powerful graphics capabilities ?
A) Personal computer (PC)
B) Workstation
C) Minicomputer
D) Mainframe computer
Answer : (B)
FAQ On Computer Science
What is the full form of COMPUTER ?
Full form of Computer :
C - Commonly O - Operated M - Machine P - Particularly U - Used for T - Technical E - Education R - Research
What is the Scientific Name of Computer ?
Computer Scientific Name :
Sillico Sapiens
Who was the human computer ?
Shakuntala Devi
Who was the first computer programmer ?
Ada Lovelace
What is the full form of GOOGLE ?
Global Organization of Oriented Group Language of Earth
