Q1. What is a fundamental characteristic of a computer system?
a) It is capable of performing arithmetic operations only.
b) It requires human intervention for all operations.
c) It can process large volumes of data quickly and accurately.
d) It only runs one program at a time.
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Correct Answer: c) It can process large volumes of data quickly and accurately.
Explanation: Computers are designed to handle large volumes of data and perform complex calculations quickly and accurately, which is one of their fundamental characteristics.
Q2. Which of the following is a basic application of a computer?
a) Cooking
b) Gaming
c) Writing letters
d) All of the above
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Correct Answer: d) All of the above
Explanation: Computers have a wide range of applications including writing letters, gaming, and even cooking when combined with specialized software or devices.
Q3. Which component of a computer system is responsible for executing instructions?
a) Hard Drive
b) Central Processing Unit (CPU)
c) Monitor
d) Printer
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Correct Answer: b) Central Processing Unit (CPU)
Explanation: The Central Processing Unit (CPU) is the primary component of a computer responsible for executing instructions and processing data.
Q4. What is the main function of a keyboard in a computer system?
a) Display information
b) Input data
c) Store data
d) Process data
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Correct Answer: b) Input data
Explanation: The keyboard is an input device used to enter data and commands into a computer system.
Q5. Which device is used to point and select items on a computer screen?
a) Printer
b) Keyboard
c) Mouse
d) Speaker
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Correct Answer: c) Mouse
Explanation: The mouse is an input device used to point at, select, and interact with items on a computer screen.
Q6. What is a VDU in the context of computer systems?
a) A type of input device
b) A type of storage device
c) A type of output device
d) A type of software
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Correct Answer: c) A type of output device
Explanation: VDU stands for Visual Display Unit, which is an output device used to display information visually.
Q7. Which of the following is considered an output device?
a) Microphone
b) Scanner
c) Monitor
d) Keyboard
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Correct Answer: c) Monitor
Explanation: A monitor is an output device that displays information from the computer to the user.
Q8. What does the term “computer memory” refer to?
a) The physical hardware that stores data
b) The software applications used by the computer
c) The data input devices
d) The external storage media
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Correct Answer: a) The physical hardware that stores data
Explanation: Computer memory refers to the physical hardware, such as RAM and ROM, used to store data and instructions temporarily or permanently.
Q9. Which of the following best describes “hardware” in a computer system?
a) The software applications and programs
b) The physical components of the computer
c) The data and information processed by the computer
d) The set of instructions executed by the CPU
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Correct Answer: b) The physical components of the computer
Explanation: Hardware refers to the tangible physical components of a computer system, such as the CPU, monitor, and keyboard.
Q10. What is the role of system software in a computer system?
a) To perform specific tasks for the user
b) To manage and operate computer hardware
c) To provide tools for programming
d) To create multimedia content
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Correct Answer: b) To manage and operate computer hardware
Explanation: System software, such as the operating system, manages and operates computer hardware and provides a platform for running application software.