Q71. Which of the following is an example of an input device?
a) Printer
b) Monitor
c) Keyboard
d) Speaker
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Correct Answer: c) Keyboard
Explanation: A keyboard is an input device used to enter data and instructions into a computer system.
Q72. What is the full form of ROM?
a) Read Only Memory
b) Random Operational Memory
c) Removable Optical Memory
d) None of the above
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Correct Answer: a) Read Only Memory
Explanation: ROM stands for Read-Only Memory, which is a type of non-volatile computer memory that permanently stores instructions and data.
Q73. Which of the following is an example of system software?
a) Microsoft Word
b) Adobe Photoshop
c) Operating System
d) Google Chrome
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Correct Answer: c) Operating System
Explanation: An operating system, such as Windows or macOS, is an example of system software that manages computer hardware and software resources.
Q74. What is the function of a computer mouse?
a) To print documents
b) To display output
c) To enter data
d) To control the movement of the cursor
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Correct Answer: d) To control the movement of the cursor
Explanation: A computer mouse is an input device used to control the movement of the cursor or pointer on the screen.
Q75. Which of the following is a type of computer network?
a) LAN
b) WAN
c) MAN
d) All of the above
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Correct Answer: d) All of the above
Explanation: LAN (Local Area Network), WAN (Wide Area Network), and MAN (Metropolitan Area Network) are all types of computer networks.
Q76. What is the full form of GUI?
a) Graphical User Interface
b) Graphical Universal Interface
c) Graphical Utility Interface
d) None of the above
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Correct Answer: a) Graphical User Interface
Explanation: GUI stands for Graphical User Interface, which is a visual way of interacting with a computer using icons, menus, and other visual elements.
Q77. Which of the following is an example of an output device?
a) Keyboard
b) Mouse
c) Scanner
d) Monitor
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Correct Answer: d) Monitor
Explanation: A monitor is an output device that displays information from a computer in visual form.
Q78. What is the full form of USB?
a) Universal Serial Bus
b) Unique Source Bus
c) United Serial Bus
d) None of the above
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Correct Answer: a) Universal Serial Bus
Explanation: USB stands for Universal Serial Bus, which is a standard for connecting peripheral devices to a computer.
Q79. Which of the following is a type of computer software?
a) Keyboard
b) Mouse
c) Microsoft Word
d) Monitor
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Correct Answer: c) Microsoft Word
Explanation: Microsoft Word is an example of application software used for word processing tasks.
Q80. What is the function of a computer virus?
a) To protect computer data
b) To improve computer performance
c) To cause harm or disrupt computer operations
d) None of the above
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Correct Answer: c) To cause harm or disrupt computer operations
Explanation: A computer virus is a type of malicious software designed to cause harm or disrupt computer operations.