Technology is growing faster than ever, and computers are at the center of this digital revolution.
This collection is designed to improve your understanding of computers, hardware, software, the internet, cybersecurity, and modern technology concepts. These easy-to-read questions and answers will help beginners learn the basics, refresh their knowledge, and prepare for quizzes, interviews, and general awareness.
1. The speed of the CPU clock is measured in
A) Kilobytes
B) Megabytes
C) Megahertz
D) Milliseconds
Correct Answer – C
2. Cache is
A) A secondary storage device
B) Not a secondary storage device
C) A magnetic tape
D) A disk drive
Correct Answer – B
3. A disk can be used to store
A) Only sequential files
B) Only random files
C) Both sequential and random files
D) Temporary files only
Correct Answer – C
4. Windows is
A) An application
B) Not an application (it is an operating system)
C) A database
D) A programming language
Correct Answer – B
5. When taking output, information is produced in
A) Hardcopy form only
B) Softcopy form only
C) Hardcopy and/or softcopy form
D) Binary format only
Correct Answer – C
6. The control unit’s primary function is to
A) Perform calculations
B) Decode program instructions
C) Store data
D) Handle graphics
Correct Answer – B
7. The most powerful type of computer among the following is a
A) Mini computer
B) Microcomputer
C) Mainframe computer
D) Supercomputer
Correct Answer – D
8. The GO TO statement is used in
A) Java
B) Python
C) C, C++, and BASIC languages
D) SQL
Correct Answer – C
9. To print a document, you should select the
A) Edit menu
B) File menu
C) View menu
D) Insert menu
Correct Answer – B
10. The name a user assigns to a document is called a
A) File type
B) File name
C) File format
D) File size
Correct Answer – B
11. A processor is an electronic device that
A) Stores information only
B) Processes data and converts it into information
C) Displays data on the screen
D) Transfers data to printers
Correct Answer – B
12. Control words are
A) Words reserved by a programming language for its own use
B) Words used for variable names
C) Commands for the operating system
D) User-defined instructions
Correct Answer – A
13. Monitor and printer are examples of
A) Input devices
B) Output devices
C) Storage devices
D) Network devices
Correct Answer – B
14. To access the properties of an object, the mouse technique used is
A) Double-clicking
B) Left-clicking
C) Right-clicking
D) Dragging
Correct Answer – C
15. An operating system is a program that
A) Writes applications
B) Makes the computer easier to use
C) Creates files
D) Formats disks
Correct Answer – B
16. Internet connections made using a phone line and a modem are called
A) Broadband
B) Dial-up connections
C) Fiber connections
D) Satellite links
Correct Answer – B
17. To access a mainframe or supercomputer, users often use a
A) Desktop computer
B) Terminal
C) Laptop
D) Router
Correct Answer – B
18. A flaw in a program that causes incorrect or inappropriate results is called a
A) Patch
B) Bug
C) Loop
D) Syntax
Correct Answer – B
19. A website address is
A) A file name
B) A program
C) A unique name that identifies a specific website on the web
D) A hyperlink
Correct Answer – C
20. Every component of your computer is either
A) Hardware or firmware
B) Hardware or software
C) Input or output
D) Data or device
Correct Answer – B
21. To make the number pad act as directional arrows, you press the
A) Scroll Lock key
B) Shift key
C) Num Lock key
D) Caps Lock key
Correct Answer – C
22. When creating a word-processed document, formatting text means
A) Checking spelling
B) Changing how words appear on screen and in print
C) Saving the file
D) Printing the document
Correct Answer – B
23. The ALU (Arithmetic Logic Unit) performs
A) Data storage
B) Input/output control
C) Simple mathematical and logical operations
D) File management
Correct Answer – C
24. A computer program is a set of
A) Keywords, symbols, and rules used to communicate instructions to a computer
B) Files stored on the computer
C) Hardware components
D) Database entries
Correct Answer – A
25. Another word for program is
A) Hardware
B) Software
C) Firmware
D) Network
Correct Answer – B
26. The brain of the computer is called the
A) Hard disk
B) Motherboard
C) CPU (Central Processing Unit)
D) ROM
Correct Answer – C
27. A computer is a device that
A) Only stores data
B) Electronically processes data and converts it into information
C) Transfers signals
D) Prints documents
Correct Answer – B
28. Laptops are computers that
A) Cannot be moved
B) Can be carried easily
C) Are larger than desktops
D) Require external power at all times
Correct Answer – B
29. The secret code that restricts access to programs is called a
A) Key
B) Lock
C) Password
D) Username
Correct Answer – C
30. The basic goal of computer processing is to
A) Store information
B) Convert data into information
C) Delete data
D) Format drives
Correct Answer – B
31. The disk is placed in the
A) Monitor
B) Keyboard
C) CPU
D) Printer
Correct Answer – C
32. A hard copy of a document is
A) Displayed on the screen
B) Printed on the printer
C) Stored on disk
D) Saved in memory
Correct Answer – B
33. E-mail is the
A) Transfer of paper mail
B) Transmission of messages and files via a computer network
C) Transfer of printed documents
D) Postal service method
Correct Answer – B
34. The person who writes and tests computer programs is called a
A) Hacker
B) Programmer
C) Designer
D) Operator
Correct Answer – B
35. The information you put into a computer is called
A) Output
B) Data
C) Software
D) File
Correct Answer – B
36. Output devices make it possible to
A) Enter data
B) Store data
C) View or print data
D) Edit data
Correct Answer – C
37. A chat is
A) A type of printed document
B) A voice conversation
C) A typed conversation that takes place on a computer
D) A database record
Correct Answer – C
38. Hardware includes
A) Only the CPU
B) The computer and all devices used for input and output
C) Only external storage
D) Only software programs
Correct Answer – B
39. The most common method of entering text and numbers into a computer is by using a
A) Mouse
B) Scanner
C) Keyboard
D) Microphone
Correct Answer – C
40. Mouse, keyboard, and plotter are the group consisting of
A) Only output devices
B) Only input devices
C) Both input and output devices
D) Storage devices
Correct Answer – B
41. How many values can be represented by a single byte?
A) 128
B) 256
C) 512
D) 1024
Correct Answer – B
42. The transformation of input into output is performed by the
A) Monitor
B) CPU
C) Keyboard
D) Printer
Correct Answer – B
43. Vertical-market applications are designed to
A) Handle general tasks like word processing
B) Handle most system functions not managed by the operating system
C) Manage operating system updates
D) Control hardware components
Correct Answer – B
44. Device drivers are
A) Large programs for office use
B) Small, special-purpose programs that control hardware
C) System utilities
D) Web browsers
Correct Answer – B
45. LAN refers to
A) Large Area Network
B) Limited Access Network
C) Local Area Network
D) Line Access Node
Correct Answer – C
46. A set of instructions telling the computer what to do is called a
A) Command
B) Program
C) File
D) Document
Correct Answer – B
47. Data going into the computer is called
A) Output
B) Input
C) Storage
D) Processing
Correct Answer – B
48. If you receive an email from an unknown sender, what should you do?
A) Open it to check the content
B) Forward it to others
C) Delete it without opening
D) Reply to confirm identity
Correct Answer – C
49. A binary choice offers how many options?
A) One
B) Two
C) Four
D) Eight
Correct Answer – B
50. A collection of programs that controls how your computer runs and processes information is called an
A) Application
B) Compiler
C) Operating System
D) Database
Correct Answer – C
51. In a spreadsheet, data is organized in
A) Tables and charts
B) Rows and columns
C) Files and folders
D) Paragraphs and pages
Correct Answer – B
52. One megabyte is approximately equal to
A) 1000 bytes
B) 1 million bytes
C) 1 billion bytes
D) 100 bytes
Correct Answer – B
53. The first web browser was developed by Tim Berners-Lee and was called
A) Internet Explorer
B) WorldWideWeb
C) Mosaic
D) Netscape Navigator
Correct Answer – B
54. The most commonly used operating system for personal computers is
A) Linux
B) macOS
C) Windows
D) UNIX
Correct Answer – C
55. The process of copying data from one location to another is called
A) Data Backup
B) Data Migration
C) Data Transfer
D) Data Recovery
Correct Answer – C
56. An Operating System is a program that
A) Writes and tests code
B) Manages the computer’s hardware resources
C) Stores all user data
D) Deletes temporary files
Correct Answer – B
57. Open Source refers to software that is
A) Closed for editing
B) Paid and licensed
C) Free to use and distribute
D) Hardware-based
Correct Answer – C
58. A Computer Network is
A) A collection of files on one computer
B) A group of interconnected devices that can communicate
C) A single user’s personal computer
D) A type of internet connection
Correct Answer – B
59. The CPU is often called the
A) Heart of the computer
B) Brain of the computer
C) Memory of the computer
D) Hard disk of the computer
Correct Answer – B
60. Ransomware is a type of malware that
A) Steals passwords
B) Deletes system files
C) Demands payment to restore access to data
D) Displays unwanted ads
Correct Answer – C
61. The Network Layer of the OSI model is responsible for
A) Data encryption
B) Routing data between networks
C) Error detection
D) Managing user sessions
Correct Answer – B
62. A Relational Database stores data in
A) Flat files
B) Hierarchical structures
C) Tables with rows and columns
D) Binary format
Correct Answer – C
63. The term Multi-Cloud refers to
A) Using only one cloud provider
B) Using multiple cloud services from different providers
C) Cloud storage within a single data center
D) Backup of cloud data
Correct Answer – B
64. Digital signals used in ISDN have
A) Whole number values
B) Discrete values
C) Continuous values
D) Analog waveforms
Correct Answer – B
65. Assembler is a type of
A) Database tool
B) Operating system
C) Language translation software
D) Debugging tool
Correct Answer – C
66. Manual data can be entered into a computer using a
A) Printer
B) Scanner
C) Speaker
D) Projector
Correct Answer – B
67. Bandwidth refers to
A) The type of cable used in a network
B) The storage capacity of a disk
C) The channel capacity or amount of data flow, measured in speed
D) The time taken to transmit data
Correct Answer – C
68. A Chip can
A) Display graphics
B) Keep maximum data
C) Transfer signals
D) Provide network access
Correct Answer – B
69. Debugging is the process of
A) Writing a program
B) Testing network speed
C) Finding and fixing errors in software code
D) Installing antivirus software
Correct Answer – C
70. A Time Bomb virus is
A) Triggered by user login
B) Triggered by the passage of time or a specific date
C) Activated when a file is copied
D) Deactivated automatically after use
Correct Answer – B
71. Linux is an example of a(n)
A) Proprietary operating system
B) Open source operating system
C) Network management tool
D) Database software
Correct Answer – B
72. Boot sector viruses are often transmitted by
A) Downloading files from the internet
B) A floppy disk left in the floppy drive
C) Sending e-mails
D) Copying text files
Correct Answer – B
73. The Operating System controls
A) Only the printer and monitor
B) The way the computer functions and user interactions
C) The network connection only
D) Only the software updates
Correct Answer – B
74. Servers are computers that
A) Store games and entertainment
B) Provide resources to other computers connected to a network
C) Are used only for personal use
D) Have no storage capacity
Correct Answer – B
75. Field names in a database describe
A) The type of report generated
B) What a data field represents
C) The color of a cell
D) The user input type
Correct Answer – B
76. To share a broadband internet connection on a network, you must install a
A) Switch
B) Router
C) Repeater
D) Firewall
Correct Answer – B
77. A goal of normalization in databases is to
A) Increase redundancy
B) Minimize redundancy
C) Duplicate tables
D) Reduce database speed
Correct Answer – B
78. Programs from the same developer that are bundled together and share common features are called
A) Software modules
B) Software suites
C) Software patches
D) Application clusters
Correct Answer – B
79. A Data Warehouse is designed to
A) Store temporary files
B) Organize and manage important subject areas
C) Delete redundant data
D) Host operating system files
Correct Answer – B
80. The term URL identifies
A) A type of database query
B) A printer on the network
C) A specific computer and main page on the web
D) A software application
Correct Answer – C
81. A proxy server is used to
A) Store backup data
B) Process client requests for web pages
C) Provide hardware maintenance
D) Encrypt network traffic
Correct Answer – B
82. When data changes in multiple lists and the lists are not updated, it causes
A) Data redundancy
B) Data inconsistency
C) Data validation
D) Data normalization
Correct Answer – B
83. Granting an outside organization access to internal web pages is often implemented using an
A) Intranet
B) Extranet
C) Internet gateway
D) Firewall
Correct Answer – B
84. The code used by relational database management systems (RDBMS) to perform database tasks is called
A) HTML
B) XML
C) SQL
D) HTTP
Correct Answer – C
85. URL stands for
A) Universal Reference Locator
B) Uniform Resource Locator
C) Unified Retrieval Link
D) Unique Resource Link
Correct Answer – B
86. A Database Management System (DBMS) is used to
A) Print reports
B) Create, maintain, and provide controlled access to a database
C) Connect to the internet
D) Manage operating systems
Correct Answer – B
87. The two broad categories of software are
A) Input and Output software
B) System and Application software
C) Commercial and Open-source
D) Machine and Assembly
Correct Answer – B
88. The metal or plastic case that holds all the physical parts of a computer is called the
A) Monitor
B) System Unit
C) CPU
D) Chassis Board
Correct Answer – B
89. Data integrity means that
A) Data can be duplicated easily
B) Data in the database is accurate and reliable
C) Data can be deleted by users
D) Data is stored in text format
Correct Answer – B
90. A Local Area Network (LAN) is
A) A public network across cities
B) A private corporate network used within a company
C) A wireless wide area network
D) A virtual network connection
Correct Answer – B
91. Eight bits are equal to
A) One kilobyte
B) One byte
C) One megabyte
D) One character
Correct Answer – B
92. A byte can hold
A) One word
B) One line
C) One character of data
D) One megabyte of data
Correct Answer – C
93. A characteristic of a file server is that it
A) Manages only databases
B) Manages file operations and shares files on a network
C) Controls printers only
D) Connects to the internet
Correct Answer – B
94. The development process of computers started in
A) 1617
B) 1642
C) 1822
D) 1945
Correct Answer – A
95. The role of Blaise Pascal in computer development was
A) Creation of the analytical engine
B) Addition and subtraction of numbers
C) Invention of the transistor
D) Development of COBOL
Correct Answer – B
96. The inventor of the computer is
A) Alan Turing
B) Charles Babbage
C) John von Neumann
D) Gordon Moore
Correct Answer – B
97. IBM made the first electronic computer in
A) 1948
B) 1953
C) 1955
D) 1960
Correct Answer – B
98. The silicon-based transistor was first made by
A) Gordon Moore
B) Gordon Teal
C) Jack Kilby
D) Robert Noyce
Correct Answer – B
99. IBM is a
A) Computer language
B) Software product
C) Company
D) Network protocol
Correct Answer – C
100. The personal computer (PC) was invented in
A) 1977
B) 1980
C) 1981
D) 1983
Correct Answer – C
Go through these 100 computer questions, test your knowledge, learn new facts, and strengthen your confidence in the digital world. Every question you explore brings you one step closer to becoming more comfortable and knowledgeable with technology.
