Computer Fundamentals MCQs

B: Correct because a keyboard is used for typing letters, numbers, and commands. A: Wrong because a monitor displays output. C: Wrong because a printer gives hard-copy output. D: Wrong because a speaker produces sound output.

B: Correct because Central Processing Unit is the main processor that executes instructions. A: Wrong because it is not the standard expansion of CPU. C: Wrong because it wrongly adds personal and does not describe the processor. D: Wrong because it describes control software, not the hardware processor.

A: Wrong because an algorithm is not an image. B: Correct because algorithms describe ordered steps for solving problems. C: Wrong because a monitor is hardware. D: Wrong because electricity is energy, not a procedure.

A: Correct because binary uses only two symbols: 0 and 1. B: Wrong because 2 is not a binary digit. C: Wrong because letters are not binary digit values. D: Wrong because binary does not use 9 or 10 as single digit values.

A: Wrong because it is not a standard computing term. B: Correct because CPU means Central Processing Unit, the main processing component of a computer. C: Wrong because it changes the meaning of CPU and is not used technically. D: Wrong because a control program is software, not the CPU.

Correct Answer: A. Linux Fact Check: Linux is open-source, meaning its source code is available for use and modification. A. Correct — Linux is right because Linux is open-source, meaning its source code is available for use and modification. B. Windows is not correct because it does not match the verified fact: Linux is open-source, meaning its source code is available for use and modification. C. MS Word is not correct because it does not match the verified fact: Linux is open-source, meaning its source code is available for use and modification. D. Excel is not correct because it does not match the verified fact: Linux is open-source, meaning its source code is available for use and modification.

Correct Answer: A. Graphical User Interface Fact Check: GUI means Graphical User Interface. It uses windows, icons, menus, and pointer. A. Correct — Graphical User Interface is right because GUI means Graphical User Interface. It uses windows, icons, menus, and pointer. B. General User Internet is not correct because it is not the accepted expansion; the correct form is Graphical User Interface. C. Global Utility Input is not correct because it is not the accepted expansion; the correct form is Graphical User Interface. D. Graphical Unit Instruction is not correct because it is not the accepted expansion; the correct form is Graphical User Interface.

Correct Answer: B. Booting Fact Check: Booting means starting or restarting the computer and loading the operating system. A. Formatting is not correct because it does not match the verified fact: Booting means starting or restarting the computer and loading the operating system. B. Correct — Booting is right because Booting means starting or restarting the computer and loading the operating system. C. Printing is not correct because it does not match the verified fact: Booting means starting or restarting the computer and loading the operating system. D. Scanning is not correct because it does not match the verified fact: Booting means starting or restarting the computer and loading the operating system.

Correct Answer: B. ROM Fact Check: BIOS is stored in ROM or firmware memory and helps start the computer. A. RAM is not correct because it does not match the verified fact: BIOS is stored in ROM or firmware memory and helps start the computer. B. Correct — ROM is right because BIOS is stored in ROM or firmware memory and helps start the computer. C. Keyboard is not correct because it does not match the verified fact: BIOS is stored in ROM or firmware memory and helps start the computer. D. Mouse is not correct because it does not match the verified fact: BIOS is stored in ROM or firmware memory and helps start the computer.

Correct Answer: B. Compiler Fact Check: A compiler translates a complete high-level program into machine language. A. Browser is not correct because it does not match the verified fact: A compiler translates a complete high-level program into machine language. B. Correct — Compiler is right because A compiler translates a complete high-level program into machine language. C. Monitor is not correct because it does not match the verified fact: A compiler translates a complete high-level program into machine language. D. Printer is not correct because it does not match the verified fact: A compiler translates a complete high-level program into machine language.

Correct Answer: A. Mobile phones Fact Check: Android is a mobile operating system mostly used in smartphones and tablets. A. Correct — Mobile phones is right because Android is a mobile operating system mostly used in smartphones and tablets. B. Printers only is not correct because it does not match the verified fact: Android is a mobile operating system mostly used in smartphones and tablets. C. Scanners only is not correct because it does not match the verified fact: Android is a mobile operating system mostly used in smartphones and tablets. D. Projectors only is not correct because it does not match the verified fact: Android is a mobile operating system mostly used in smartphones and tablets.

Correct Answer: C. Windows Fact Check: Windows is an operating system. Other examples are Linux, macOS, Android, and iOS. A. MS Excel is not correct because it does not match the verified fact: Windows is an operating system. Other examples are Linux, macOS, Android, and iOS. B. Google Chrome is not correct because it does not match the verified fact: Windows is an operating system. Other examples are Linux, macOS, Android, and iOS. C. Correct — Windows is right because Windows is an operating system. Other examples are Linux, macOS, Android, and iOS. D. MS Word is not correct because it does not match the verified fact: Windows is an operating system. Other examples are Linux, macOS, Android, and iOS.

Correct Answer: A. Manage computer resources Fact Check: An operating system manages hardware, software, files, memory, and user interaction. A. Correct — Manage computer resources is right because An operating system manages hardware, software, files, memory, and user interaction. B. Print books only is not correct because it does not match the verified fact: An operating system manages hardware, software, files, memory, and user interaction. C. Design clothes only is not correct because it does not match the verified fact: An operating system manages hardware, software, files, memory, and user interaction. D. Make tea is not correct because it does not match the verified fact: An operating system manages hardware, software, files, memory, and user interaction.

Correct Answer: C. MS Word Fact Check: MS Word is application software used for word processing. A. Windows is not correct because it does not match the verified fact: MS Word is application software used for word processing. B. Linux kernel is not correct because it does not match the verified fact: MS Word is application software used for word processing. C. Correct — MS Word is right because MS Word is application software used for word processing. D. BIOS is not correct because it does not match the verified fact: MS Word is application software used for word processing.

Correct Answer: B. Windows Fact Check: Windows is an operating system, and operating systems are system software. A. MS Word is not correct because it does not match the verified fact: Windows is an operating system, and operating systems are system software. B. Correct — Windows is right because Windows is an operating system, and operating systems are system software. C. Excel is not correct because it does not match the verified fact: Windows is an operating system, and operating systems are system software. D. Photoshop is not correct because it does not match the verified fact: Windows is an operating system, and operating systems are system software.

Correct Answer: B. Uninterruptible Power Supply Fact Check: UPS provides backup power when electricity fails and protects the computer from sudden shutdown. A. Universal Power System is not correct because it is not the accepted expansion; the correct form is Uninterruptible Power Supply. B. Correct — Uninterruptible Power Supply is right because UPS provides backup power when electricity fails and protects the computer from sudden shutdown. C. United Processing System is not correct because it is not the accepted expansion; the correct form is Uninterruptible Power Supply. D. Unit Power Source is not correct because it is not the accepted expansion; the correct form is Uninterruptible Power Supply.

Correct Answer: B. Input device Fact Check: A webcam captures images and videos, so it is an input device. A. Output device is not correct because it does not match the verified fact: A webcam captures images and videos, so it is an input device. B. Correct — Input device is right because A webcam captures images and videos, so it is an input device. C. Storage device is not correct because it does not match the verified fact: A webcam captures images and videos, so it is an input device. D. Processing device is not correct because it does not match the verified fact: A webcam captures images and videos, so it is an input device.

Correct Answer: A. Sound input Fact Check: A microphone is an input device used to enter sound or voice into the computer. A. Correct — Sound input is right because A microphone is an input device used to enter sound or voice into the computer. B. Sound output is not correct because it does not match the verified fact: A microphone is an input device used to enter sound or voice into the computer. C. Printing is not correct because it does not match the verified fact: A microphone is an input device used to enter sound or voice into the computer. D. Displaying is not correct because it does not match the verified fact: A microphone is an input device used to enter sound or voice into the computer.

Correct Answer: A. Touchscreen Fact Check: A touchscreen works as input because users touch it, and output because it displays information. A. Correct — Touchscreen is right because A touchscreen works as input because users touch it, and output because it displays information. B. Keyboard is not correct because it does not match the verified fact: A touchscreen works as input because users touch it, and output because it displays information. C. Printer is not correct because it does not match the verified fact: A touchscreen works as input because users touch it, and output because it displays information. D. Speaker is not correct because it does not match the verified fact: A touchscreen works as input because users touch it, and output because it displays information.

Correct Answer: B. Soft copy Fact Check: Output displayed on the screen is called soft copy. A. Hard copy is not correct because it does not match the verified fact: Output displayed on the screen is called soft copy. B. Correct — Soft copy is right because Output displayed on the screen is called soft copy. C. Paper copy is not correct because it does not match the verified fact: Output displayed on the screen is called soft copy. D. Manual copy is not correct because it does not match the verified fact: Output displayed on the screen is called soft copy.