Computer Fundamentals 50 MCQs:

1. What does "CPU" stand for? a) Central Processing Unit b) Computer Processing Unit c) Central Program Unit d) Central Peripheral Unit

2. Which component stores data in a computer for immediate use? a) RAM b) Hard Drive c) CPU d) GPU

3. What is the smallest unit of digital information? a) Byte b) Bit c) Kilobyte d) Megabyte

4. Which type of software provides the user interface to interact with the computer? a) System software b) Application software c) Utility software d) Firmware

5. The binary number system uses which two digits? a) 0 and 1 b) 1 and 2 c) 0 and 9 d) 1 and 10

6. What type of memory is non-volatile and retains data even when the computer is powered off? a) RAM b) Cache memory c) ROM d) Virtual memory

7. Which device converts digital signals from a computer into analog signals for transmission over telephone lines? a) Modem b) Router c) Hub d) Switch

8. What does "GUI" stand for? a) General Unifying Interface b) Graphical User Interface c) General User Interface d) Great Universal Interface

9. Which programming language is known as the "mother of all languages"? a) Java b) C++ c) Assembly language d) COBOL

10. Which storage device uses laser technology to store and retrieve data? a) Hard Drive b) Flash Drive c) CD-ROM d) Floppy Disk

11. What is the purpose of an operating system? a) Display advertisements on the screen b) Manage hardware and software resources c) Compile programming languages d) Create graphics and animations

12. Which company developed the first personal computer (PC)? a) IBM b) Microsoft c) Apple d) Dell

13. What does "URL" stand for? a) Uniform Resource Locator b) Universal Reference Locator c) United Resource Link d) Uniform Reference Link

14. Which of the following is an example of an input device? a) Monitor b) Printer c) Keyboard d) Speaker

15. Which programming language is commonly used for web development? a) C++ b) Python c) HTML d) Pascal

16. What is the purpose of an algorithm? a) Control hardware operations b) Execute programs c) Solve problems step-by-step d) Manage memory

17. Which component is responsible for processing graphics and visuals? a) RAM b) CPU c) GPU d) Hard Drive

18. Which network topology has a central node connected to all other nodes? a) Star b) Ring c) Bus d) Mesh

19. What is the role of a compiler in programming? a) Execute the program b) Debug the program c) Translate source code to machine code d) Optimize memory usage

20. Which programming language is known as a "high-level" language? a) Assembly language b) Machine language c) Fortran d) Binary code

21. Which technology allows a user to interact with a computer through natural hand gestures and movements? a) Voice recognition b) Haptic feedback c) Virtual reality d) Gesture recognition

22. Which component connects multiple computers within a local area network (LAN)? a) Router b) Modem c) Hub d) Switch

23. What is the purpose of an optical character recognition (OCR) software? a) Play multimedia files b) Convert text from images into editable text c) Protect against viruses d) Create spreadsheets

24. Which of the following is an example of secondary storage? a) RAM b) Cache memory c) DVD d) CPU

25. Which programming paradigm focuses on breaking down a problem into smaller, reusable modules? a) Object-oriented programming b) Functional programming c) Procedural programming d) Imperative programming

26. Which type of software is designed to harm or disrupt computers and networks? a) Firewall b) Antivirus c) Malware d) Encryption software

27. What does "HTTP" stand for? a) HyperText Transfer Protocol b) High Transfer Text Protocol c) Hyper Transfer Tool Protocol d) HighText Transport Protocol

28. What is the primary purpose of an input device? a) Display output on the screen b) Store data for later use c) Enter data into the computer d) Execute programs

29. Which type of memory is used to store data that can be written and rewritten? a) ROM b) Cache memory c) Flash memory d) CD-ROM

30. Which type of software helps manage and organize files and directories on a computer? a) Application software b) System software c) Utility software d) Firmware

31. What does "LAN" stand for? a) Local Access Network b) Local Area Network c) Long Area Network d) Large Access Network

32. Which component of the computer is responsible for arithmetic and logical operations? a) RAM b) CPU c) GPU d) Hard Drive

33. Which technology allows a computer to run multiple operating systems simultaneously? a) Multitasking b) Virtualization c) Parallel processing d) Overclocking

34. Which of the following is an example of an output device? a) Mouse b) Keyboard c) Monitor d) Scanner

35. Which programming language is often used for scientific and engineering applications? a) Java b) Python c) FORTRAN d) Ruby

36. What is the purpose of a firewall in a computer system? a) Display advertisements b) Filter incoming and outgoing network traffic c) Generate random numbers d) Create backup copies

37. Which storage device has the fastest data access time? a) Hard Drive b) Solid State Drive (SSD) c) Flash Drive d) CD-ROM

38. Which programming language is designed for creating web pages and applications with dynamic content? a) Java b) C++ c) HTML d) COBOL

39. What does "SMTP" stand for? a) Simple Mail Transfer Protocol b) Secure Mail Text Protocol c) Server Mail Transfer Protocol d) Standard Mail Transmission Protocol

40. Which of the following is a volatile memory? a) ROM b) Flash memory c) Hard Drive d) RAM

41. Which type of software provides a platform for users to perform specific tasks, such as word processing or spreadsheet calculations? a) Operating system b) Application software c) Utility software d) Firmware

42. Which component is responsible for storing the computer's firmware and BIOS settings? a) Hard Drive b) RAM c) Motherboard d) ROM

43. Which programming language is often used for database management and manipulation? a) C++ b) Java c) SQL d) Ruby

44. What is the primary purpose of an output device? a) Enter data into the computer b) Store data for later use c) Display output to the user d) Execute programs

45. Which technology allows wireless communication between devices over short distances? a) Wi-Fi b) Bluetooth c) NFC (Near Field Communication) d) GPS

46. What is the function of an expansion card in a computer? a) Provide additional storage space b) Enhance graphics performance c) Store operating system files d) Maintain network connections

47. Which type of software is used to protect a computer from viruses and malicious software? a) Firewall b) Antivirus c) Encryption software d) Operating system

48. Which programming language is known for its simplicity and ease of learning? a) C++ b) Python c) Java d) Assembly language

49. What is the purpose of a spreadsheet software? a) Create and edit images b) Write and compile code c) Perform calculations and organize data d) Play audio and video files

50. Which component of a computer system acts as its "brain"? a) Monitor b) Keyboard c) Mouse d) CPU

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