"Components of Computer System MCQ" is a multiple-choice question set covering key aspects of computer systems, including hardware, software, input/output devices, memory, and processing units. It helps students and professionals assess their knowledge of fundamental computer concepts, enhancing learning through structured questions on system architecture, functions, and components.

1. To access properties of an object, the mouse technique to use is ?

  • right-clicking 
  • shift-clicking 
  • dragging 
  • dropping 

Answer: right-clicking

Explanation: The mouse technique used to access properties of an object is typically right-clicking. Therefore, the answer is (a) right-clicking.

2. The term _________ refers to any computer component that is required to perform work. ?

  • bootstrap 
  • kernel 
  • resource 
  • source code 

Answer: resource

Explanation: The term "resource" refers to any computer component that is required to perform work. Therefore, the answer is (c) resource.

3. ________ key is the example of Toggle key ?

  • Alt 
  • Shift 
  • Control 
  • Caps Lock 

Answer: Caps Lock

Explanation: Caps Lock is the example of Toggle key.

4. The three main parts of the processor are _______ ?

  • ALU, Control Unit and Registers 
  • ALU, Control Unit and RAM 
  • Cache, Control Unit and Registers 
  • Control Unit, Registers and RAM 

Answer: ALU, Control Unit and Registers

Explanation: ALU, Control Unit and Registers

5. Codes consisting of lines of varying widths or lengths that are computer-readable are known as ?

  • an ASCII code 
  • a magnetic tape 
  • a bar code 
  • an OCR scanner 

Answer: a bar code

Explanation: Codes consisting of lines of varying widths or lengths that are computer-readable are known as a bar code. Therefore, the answer is (c) a bar code.

6. The name of the computers brain is ?

  • monitor 
  • hardware 
  • CPU 
  • byte 

Answer: CPU

Explanation: The name of the computer's brain is (c) CPU, which stands for Central Processing Unit.

7. Which part of the computer displays the work done ?

  • RAM 
  • Printer 
  • Monitor 
  • ROM 

Answer: Monitor

Explanation: The part of the computer that displays the work done is the monitor. Therefore, the correct answer is (c) Monitor. A monitor is an output device that displays text, graphics, and video on a screen. It allows users to view the work they have done on the computer, including documents, images, videos, and other content. Monitors come in various sizes and resolutions and can be connected to a computer using different types of cables, such as VGA, DVI, HDMI, and DisplayPort. Monitors are essential for most computer tasks, including web browsing, word processing, gaming, and video editing, among others.

8. The most common method of entering text and numerical data into a computer system is through the use of a ?

  • keyboard 
  • scanner 
  • printer 
  • plotter 

Answer: keyboard

Explanation: The most common method of entering text and numerical data into a computer system is through the use of a keyboard. Therefore, the correct answer is (a) keyboard.

9. To access properties of an object, the mouse technique to use is ?

  • dragging 
  • dropping 
  • right-clicking 
  • shift-clicking 

Answer: right-clicking

Explanation: The mouse technique used to access properties of an object is typically right-clicking. Therefore, the answer is (c) right-clicking

10. The term _________ refers to data storage systems that make it possible for a computer or electronic device to store and retrieve data. ?

  • retrieval technology 
  • input technology 
  • output technology 
  • storage technology 

Answer: storage technology

Explanation: The term "storage technology" refers to data storage systems that make it possible for a computer or electronic device to store and retrieve data. Therefore, the answer is (d) storage technology.

11. All the characters that a device can use is called its ?

  • Skill Set 
  • Character Alphabet 
  • Character Codes 
  • Character Set 

Answer: Character Set

Explanation: The correct answer is (d) Character Set.

12. Which of the following is part of the System Unit ?

  • Monitor 
  • CPU 
  • CD-ROM 
  • Floppy Disk 

Answer: CPU

Explanation: CPU (Central Processing Unit) is part of the System Unit.

13. Which of the following is needed for sound recording ?

  • Speaker 
  • Microphone 
  • Talker 
  • Mouse 

Answer: Microphone

Explanation: Microphone is needed for sound recording.

14. Which of the following is part of the system unit ?

  • Keyboard 
  • Floppy disks 
  • Monitor 
  • Memory 

Answer: Memory

Explanation: Memory is part of the system unit.

15. The computer monitor is which type of device ?

  • Input 
  • Output 
  • Processing 
  • Software 

Answer: Output

Explanation: The computer monitor is an output device.

16. What type of keys are ctrl and shift ?

  • adjustment 
  • function 
  • modifier 
  • alphanumeric 

Answer: modifier

Explanation: Ctrl and Shift keys are modifier keys, as they modify the function of other keys when pressed in combination with them. Therefore, the answer is (c) modifier.

17. Which is the part of the computer system that one can physically touch ?

  • data 
  • operating system 
  • hardware 
  • software 

Answer: hardware

Explanation: The part of the computer system that one can physically touch is hardware. Therefore, the correct answer is (c) hardware.

18. Computer _________ is whatever is typed, submitted, or transmitted to a computer system ?

  • input 
  • output 
  • data 
  • circuitry 

Answer: input

Explanation: Computer input is whatever is typed, submitted, or transmitted to a computer system. Answer: (a) input.

19. Which of these is a point-and-draw device ?

  • mouse 
  • scanner 
  • printer 
  • CD-ROM 

Answer: mouse

Explanation: Mouse is a point-and-draw device

20. Which of the following will translate images of text, drawings, and photos into digital form ?

  • digitizer 
  • modem 
  • scanner 
  • keyboard 

Answer: scanner

Explanation: A scanner will translate images of text, drawings, and photos into digital form. A scanner is an input device that captures images and documents and converts them into digital format that can be saved on a computer. Scanners work by using a light source and sensors to detect the colors and patterns of the image, and then converting that information into digital data that can be stored and manipulated on a computer.