Q21. What is the primary function of an operating system?
a) To execute applications
b) To manage hardware and software resources
c) To perform calculations
d) To input data
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Correct Answer: b) To manage hardware and software resources
Explanation: The operating system manages and coordinates the use of hardware and software resources in a computer system.
Q22. What is the purpose of a “device driver” in a computer system?
a) To store data
b) To manage hardware devices
c) To create software applications
d) To display visual output
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Correct Answer: b) To manage hardware devices
Explanation: Device drivers are specialized software programs that allow the operating system to communicate with and manage hardware devices.
Q23. What does “BIOS” stand for in computer terminology?
a) Basic Input Output System
b) Binary Input Output System
c) Basic Internal Operating System
d) Binary Internal Operating System
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Correct Answer: a) Basic Input Output System
Explanation: BIOS (Basic Input Output System) is firmware that initializes and tests hardware during the booting process and provides runtime services for operating systems and programs.
Q24. Which of the following is NOT a common input device?
a) Keyboard
b) Mouse
c) Monitor
d) Scanner
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Correct Answer: c) Monitor
Explanation: A monitor is an output device used to display information from the computer, whereas keyboard, mouse, and scanner are input devices.
Q25. What does the term “application software” refer to?
a) Software used to manage system resources
b) Programs designed to perform specific tasks for users
c) Software that manages hardware components
d) Firmware stored in ROM
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Correct Answer: b) Programs designed to perform specific tasks for users
Explanation: Application software is designed to help users perform specific tasks, such as word processing, spreadsheet management, and web browsing.
Q26. What is the primary role of the Central Processing Unit (CPU) in a computer?
a) To store data
b) To execute instructions
c) To manage hardware devices
d) To provide network connectivity
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Correct Answer: b) To execute instructions
Explanation: The CPU is the core component responsible for executing instructions and processing data in a computer.
Q27. Which of the following is an example of non-volatile memory?
a) RAM
b) Cache
c) Hard Drive
d) CPU Registers
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Correct Answer: c) Hard Drive
Explanation: Non-volatile memory, such as a hard drive, retains data even when the computer is turned off, unlike volatile memory like RAM that loses data when power is lost.
Q28. What does “data representation” in computing refer to?
a) The process of storing data on disk
b) The method of encoding and formatting data for processing
c) The process of printing data
d) The technique of inputting data
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Correct Answer: b) The method of encoding and formatting data for processing
Explanation: Data representation involves encoding and formatting data so that it can be processed by the computer efficiently.
Q29. Which device would you use to input a digital drawing into a computer?
a) Keyboard
b) Monitor
c) Graphics Tablet
d) Printer
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Correct Answer: c) Graphics Tablet
Explanation: A graphics tablet is an input device used to draw or sketch directly into a computer, providing a digital representation of the drawing.
Q30. What does the term “user interface” refer to?
a) The connection between the computer and external devices
b) The way users interact with software and hardware
c) The hardware used to input data
d) The software used to manage computer resources
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Correct Answer: b) The way users interact with software and hardware
Explanation: The user interface is the means by which users interact with and control software and hardware, including graphical user interfaces (GUIs) and command-line interfaces.