Q91. What type of memory is used for temporary storage during active processing?
a) ROM
b) HDD
c) RAM
d) SSD
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Correct Answer: c) RAM
Explanation: RAM (Random Access Memory) is used for temporary storage of data and instructions that are actively being processed by the CPU.
Q92. What does the ‘power supply unit’ (PSU) in a computer do?
a) Provides power to the computer’s components
b) Stores data permanently
c) Connects external devices
d) Manages software applications
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Correct Answer: a) Provides power to the computer’s components
Explanation: The PSU converts electrical power from an outlet into the appropriate voltage to power the computer’s components.
Q93. Which software is essential for operating a computer system?
a) Application Software
b) Utility Software
c) Systems Software
d) Malware
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Correct Answer: c) Systems Software
Explanation: Systems software, including operating systems, is essential for operating a computer system and managing its hardware and software resources.
Q94. What is the main function of a ‘mouse’?
a) To display visual output
b) To input data by moving and clicking
c) To store files and programs
d) To connect to external devices
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Correct Answer: b) To input data by moving and clicking
Explanation: A mouse is an input device used to interact with the computer by moving a cursor and clicking on items.
Q95. What is the purpose of a computer’s ‘motherboard’?
a) To display the output
b) To connect and integrate various hardware components
c) To manage software programs
d) To provide power to the CPU
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Correct Answer: b) To connect and integrate various hardware components
Explanation: The motherboard connects and integrates hardware components such as the CPU, memory, and storage devices, facilitating communication between them.
Q96. What does ‘application software’ include?
a) Operating systems
b) Utility programs
c) Word processors and spreadsheets
d) Firmware
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Correct Answer: c) Word processors and spreadsheets
Explanation: Application software includes programs designed for specific tasks, such as word processors and spreadsheets, which are used for creating documents and managing data.
Q97. Which device is used to visually display computer output?
a) Printer
b) Monitor
c) Scanner
d) Microphone
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Correct Answer: b) Monitor
Explanation: A monitor is used to visually display the output from the computer, including the graphical user interface and application content.
Q98. What is the main purpose of ‘utility software’?
a) To perform specific user tasks
b) To manage and maintain the computer system
c) To control hardware components
d) To provide basic system functions
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Correct Answer: b) To manage and maintain the computer system
Explanation: Utility software helps manage, maintain, and optimize the computer system, including tools for disk cleanup and antivirus protection.
Q99. What is ‘cache memory’ used for in a computer system?
a) To store files permanently
b) To provide quick access to frequently used data
c) To manage network connections
d) To display output
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Correct Answer: b) To provide quick access to frequently used data
Explanation: Cache memory provides high-speed access to frequently used data and instructions, improving system performance and reducing processing time.
Q100. What does ‘ROM’ stand for in computing?
a) Random Operating Memory
b) Read-Only Memory
c) Read-Only Module
d) Random Output Memory
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Correct Answer: b) Read-Only Memory
Explanation: ROM (Read-Only Memory) is a type of non-volatile memory that stores critical system instructions and firmware that cannot be modified under normal operation.