Q. What does the acronym 'USB' stand for? (2020)
A.
Universal Serial Bus
B.
Unified System Bus
C.
Universal Storage Bus
D.
Universal Signal Bus
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Solution
USB stands for Universal Serial Bus, which is a standard for connecting peripherals to a computer.
Correct Answer: A — Universal Serial Bus
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Q. What is the function of a power supply unit (PSU) in a computer?
A.
Store data
B.
Provide power
C.
Cool the system
D.
Connect peripherals
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Solution
The power supply unit (PSU) provides power to all components of the computer.
Correct Answer: B — Provide power
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Q. What is the main function of a power supply unit (PSU) in a computer? (2022)
A.
To cool the system
B.
To provide power to components
C.
To store data
D.
To connect peripherals
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Solution
The power supply unit (PSU) converts electrical power from an outlet into usable power for the computer's internal components.
Correct Answer: B — To provide power to components
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Q. What is the main purpose of a motherboard?
A.
Store data
B.
Connect all components
C.
Power the computer
D.
Input data
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Solution
The motherboard connects all components of a computer, allowing them to communicate with each other.
Correct Answer: B — Connect all components
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Q. What is the primary function of a CPU in a computer system? (2021)
A.
To store data
B.
To process instructions
C.
To display graphics
D.
To connect peripherals
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Solution
The CPU (Central Processing Unit) is responsible for processing instructions and executing commands in a computer system.
Correct Answer: B — To process instructions
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Q. What is the primary function of RAM in a computer?
A.
Store data permanently
B.
Execute programs
C.
Provide temporary storage
D.
Control peripherals
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Solution
RAM (Random Access Memory) provides temporary storage for data and programs that are currently in use.
Correct Answer: C — Provide temporary storage
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Q. What is the purpose of a graphics card in a computer? (2023)
A.
To manage system memory
B.
To enhance audio output
C.
To render images and videos
D.
To connect to the internet
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Solution
A graphics card is designed to render images and videos, providing better visual performance for gaming and graphic design.
Correct Answer: C — To render images and videos
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Q. What type of device is a printer?
A.
Input device
B.
Output device
C.
Storage device
D.
Network device
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Solution
A printer is an output device that produces a physical copy of digital documents.
Correct Answer: B — Output device
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Q. What type of memory is used for temporary storage while a computer is running? (2019)
A.
ROM
B.
Flash Memory
C.
RAM
D.
Hard Drive
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Solution
RAM (Random Access Memory) is used for temporary storage of data that the CPU needs while the computer is running.
Correct Answer: C — RAM
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Q. Which component is responsible for converting digital signals to analog signals? (2022)
A.
Modem
B.
Router
C.
Switch
D.
Hub
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Solution
A modem (modulator-demodulator) converts digital signals from a computer into analog signals for transmission over telephone lines.
Correct Answer: A — Modem
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Q. Which component is responsible for rendering graphics in a computer?
A.
CPU
B.
GPU
C.
RAM
D.
Motherboard
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Solution
The GPU (Graphics Processing Unit) is responsible for rendering graphics and images in a computer.
Correct Answer: B — GPU
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Q. Which device is used to input data into a computer? (2019)
A.
Monitor
B.
Keyboard
C.
Printer
D.
Speaker
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Solution
A keyboard is an input device used to enter data and commands into a computer.
Correct Answer: B — Keyboard
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Q. Which of the following is a non-volatile storage device?
A.
RAM
B.
Cache
C.
SSD
D.
CPU
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Solution
An SSD (Solid State Drive) is a non-volatile storage device that retains data even when powered off.
Correct Answer: C — SSD
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Q. Which of the following is an example of a peripheral device?
A.
CPU
B.
RAM
C.
Scanner
D.
Motherboard
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Solution
A scanner is an example of a peripheral device that is used to input images and documents into a computer.
Correct Answer: C — Scanner
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Q. Which of the following is an example of an input/output device? (2023)
A.
Scanner
B.
Monitor
C.
Keyboard
D.
Mouse
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Solution
A scanner is an input/output device that can capture images and send them to a computer while also allowing for output in the form of printed documents.
Correct Answer: A — Scanner
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Q. Which of the following is considered a peripheral device? (2020)
A.
Motherboard
B.
RAM
C.
Printer
D.
CPU
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Solution
A printer is an external device that connects to a computer to produce a hard copy of documents, making it a peripheral device.
Correct Answer: C — Printer
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Q. Which of the following is considered the brain of the computer?
A.
RAM
B.
CPU
C.
Hard Drive
D.
Motherboard
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Solution
The CPU (Central Processing Unit) is known as the brain of the computer as it performs all the calculations and processing.
Correct Answer: B — CPU
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Q. Which of the following storage devices is non-volatile? (2021)
A.
RAM
B.
Cache Memory
C.
Hard Disk Drive
D.
Registers
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Solution
A Hard Disk Drive (HDD) is a non-volatile storage device that retains data even when the power is turned off.
Correct Answer: C — Hard Disk Drive
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