600 Most Important & Most Repeated Basic MCQs of Computer in PDF. The list of Computer MCQs PDF is for CSS, NTS, OTS, FPSC, PPSC, UPSC and other Testing Services around the world.
Computer MCQs with PDF
What does CPU stand for?
- a) Central Processing Unit
- b) Computer Processing Unit
- c) Central Program Unit
- d) Computer Program Unit
Answer: a) Central Processing Unit
Which type of memory is non-volatile?
- a) RAM
- b) ROM
- c) Cache
- d) Virtual Memory
Answer: b) ROM
Which programming language is commonly used for web development?
- a) Java
- b) Python
- c) HTML
- d) C++
Answer: c) HTML
What does HTTP stand for?
- a) HyperText Transfer Protocol
- b) HyperText Transmission Protocol
- c) HyperTransfer Text Protocol
- d) HyperText Transfer Program
Answer: a) HyperText Transfer Protocol
What is the primary purpose of an operating system?
- a) Managing hardware resources
- b) Running application software
- c) Providing internet connectivity
- d) Creating user interfaces
Answer: a) Managing hardware resources
What is the default file extension for Microsoft Word documents?
- a) .txt
- b) .docx
- c) .pdf
- d) .xls
Answer: b) .docx
Which company developed the Windows operating system?
- a) Microsoft
- b) Apple
- c) IBM
- d) Google
Answer: a) Microsoft
What is the function of a router in a computer network?
- a) Connects multiple computers in a network
- b) Provides internet access to devices
- c) Routes data packets between networks
- d) Controls network security
Answer: c) Routes data packets between networks
What does GUI stand for?
- a) Graphical User Interface
- b) General User Interface
- c) Global User Interface
- d) Graphic User Input
Answer: a) Graphical User Interface
Which component of a computer is responsible for executing instructions?
- a) Hard Drive
- b) RAM
- c) CPU
- d) Motherboard
Answer: c) CPU
Which programming language is known as the “mother of all languages”?
- a) Java
- b) C++
- c) Fortran
- d) Python
Answer: c) Fortran
What is the function of an antivirus software?
- a) Prevents unauthorized access to a computer
- b) Protects against viruses and malware
- c) Monitors network traffic
- d) Manages computer backups
Answer: b) Protects against viruses and malware
What does HTML stand for?
- a) Hypertext Markup Language
- b) High-Level Machine Language
- c) Hyperlink and Text Markup Language
- d) Hypermedia and Text Markup Language
Answer: a) Hypertext Markup Language
Which type of software allows users to create slideshows with text, images, and animations?
- a) Spreadsheet software
- b) Presentation software
- c) Word processing software
- d) Graphic design software
Answer: b) Presentation software
Which programming language is commonly used for creating dynamic web pages?
- a) JavaScript
- b) CSS
- c) PHP
- d) Ruby
Answer: a) JavaScript
What is the purpose of an IP address?
- a) Identifies a device on a network
- b) Controls internet access
- c) Stores website data
- d) Encrypts data transmission
Answer: a) Identifies a device on a network
Which computer component stores data even when the power is turned off?
- a) RAM
- b) CPU
- c) Hard Drive
- d) USB Drive
Answer: c) Hard Drive
Which protocol is used to send and receive email messages over the internet?
- a) FTP
- b) SMTP
- c) HTTP
- d) POP3
Answer: b) SMTP
What is the purpose of a compiler in programming?
- a) Translates high-level code to machine code
- b) Executes program instructions
- c) Debugs code errors
- d) Manages memory allocation
Answer: a) Translates high-level code to machine code
Which type of software allows users to create and manage databases?
- a) Spreadsheet software
- b) Database software
- c) Presentation software
- d) Word processing software
Answer: b) Database software
What is the function of a modem in computer networking?
- a) Converts digital signals to analog signals and vice versa
- b) Connects multiple computers in a network
- c) Provides internet access to devices
- d) Controls network security
Answer: a) Converts digital signals to analog signals and vice versa
What is the purpose of a cookie in web browsing?
- a) Stores website data for faster access
- b) Tracks user activity and preferences
- c) Encrypts data transmission
- d) Manages network resources
Answer: b) Tracks user activity and preferences
Which programming language is commonly used for data analysis and statistical modeling?
- a) Python
- b) Java
- c) C#
- d) MATLAB
Answer: a) Python
What does URL stand for?
- a) Universal Resource Locator
- b) Uniform Resource Locator
- c) Unique Resource Locator
- d) Universal Reference Locator
Answer: b) Uniform Resource Locator
What is the purpose of a cache in computer systems?
- a) Stores frequently accessed data for faster retrieval
- b) Manages computer backups
- c) Controls internet access
- d) Provides virtual memory
Answer: a) Stores frequently accessed data for faster retrieval
Which programming language is commonly used for mobile app development?
- a) Swift
- b) PHP
- c) Ruby
- d) COBOL
Answer: a) Swift
What is the function of an input device in a computer system?
- a) Sends data to the computer
- b) Displays output to the user
- c) Executes program instructions
- d) Stores data for future use
Answer: a) Sends data to the computer
