Q51. Which of the following is considered the brain of the computer?
a) Monitor
b) RAM
c) CPU
d) Hard Drive
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Correct Answer: c) CPU
Explanation: The CPU (Central Processing Unit) is often referred to as the brain of the computer because it performs most of the processing inside a computer, executing instructions from programs and managing data flow.
Q52. Which device is used to produce a paper copy of a document?
a) Monitor
b) Scanner
c) Printer
d) Mouse
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Correct Answer: c) Printer
Explanation: A printer is an output device that produces a physical (paper) copy of digital documents, such as text files or images, from a computer.
Q53. What type of memory is used to store the BIOS in a computer?
a) RAM
b) ROM
c) Cache
d) Virtual Memory
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Correct Answer: b) ROM
Explanation: The BIOS (Basic Input/Output System) is stored in ROM (Read-Only Memory) because it needs to be preserved even when the computer is turned off. ROM is non-volatile memory that retains its contents without power.
Q54. Which component of a computer system is responsible for rendering graphics?
a) CPU
b) GPU
c) RAM
d) Hard Drive
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Correct Answer: b) GPU
Explanation: The GPU (Graphics Processing Unit) is responsible for rendering images, animations, and video to the monitor. It offloads these tasks from the CPU, improving overall system performance, especially in graphics-intensive applications.
Q55. What does the term “booting” refer to in computing?
a) Installing software
b) Shutting down the computer
c) Starting up the computer and loading the operating system
d) Formatting a hard drive
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Correct Answer: c) Starting up the computer and loading the operating system
Explanation: Booting refers to the process of starting up a computer and loading the operating system into the computer’s memory so that it becomes ready for use.
Q56. Which of the following is a non-volatile storage device?
a) RAM
b) Cache
c) SSD
d) Register
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Correct Answer: c) SSD
Explanation: An SSD (Solid State Drive) is a non-volatile storage device, meaning it retains data even when the power is turned off. It is faster and more durable than traditional hard disk drives (HDDs).
Q57. Which device is primarily used for inputting text into a computer?
a) Mouse
b) Keyboard
c) Scanner
d) Microphone
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Correct Answer: b) Keyboard
Explanation: A keyboard is primarily used to input text into a computer by pressing keys that correspond to letters, numbers, symbols, and special functions.
Q58. What is the purpose of a UPS (Uninterruptible Power Supply)?
a) To cool the CPU
b) To provide backup power during a power failure
c) To store data
d) To enhance internet speed
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Correct Answer: b) To provide backup power during a power failure
Explanation: A UPS provides emergency power to a computer when the main power source fails, preventing data loss and hardware damage during sudden power outages.
Q59. What type of device is a light pen?
a) Output device
b) Input device
c) Storage device
d) Processing device
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Correct Answer: b) Input device
Explanation: A light pen is an input device that allows users to draw or select objects directly on a computer screen. It is often used for graphic design and in certain interactive applications.
Q60. Which of the following devices can be classified as both input and output devices?
a) Printer
b) Modem
c) Keyboard
d) Mouse
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Correct Answer: b) Modem
Explanation: A modem (modulator-demodulator) is a device that can both receive (input) and send (output) data over a communication line, such as the internet. It is used for internet connectivity.