Computer Fundamentals MCQ | SET – 01
Here are 20 multiple-choice questions on Computer Fundamentals MCQ | SET – 01 along with their answers and explanations:
Question 01: What does CPU stand for?
A) Computer Processing Unit
B) Central Processing Unit
C) Control Processing Unit
D) Core Processing Unit
Answer: B) Central Processing Unit
Explanation: The CPU is the main part of a computer and executes fundamental arithmetic, logical, control, and I/O activities.
Question 02: What does the operating system want to do?
A) To manages computer hardware and software resources
B) To execute application programs
C) To provide a user interface
D) All of the above
Answer: D) All of the above
Explanation: The operating system runs programs, manages software and hardware resources, and communicates with users.
Question 03: What is the primary function of RAM?
A) To store permanent data
B) To store the operating system
C) To store program instructions
D) To store data temporarily during operation
Answer: D) To store data temporarily during operation
Explanation: Random Access Memory is volatile memory used to temporarily store data and program instructions while the computer is running.
Question 04: Which of the following is an input device?
A) Printer
B) Monitor
C) Keyboard
D) Speaker
Answer: C) Keyboard
Explanation: Keyboard is an input device that enters commands and data into a computer.
Question 05: What is the purpose of a firewall?
A) To protect against physical damage
B) To control network traffic and prevent unauthorized access
C) To store data and files
D) To provide power backup
Answer: B) To control network traffic and prevent unauthorized access
Explanation: Firewall monitors and controls network traffic to protect against potential threats.
Question 06: What does LAN stand for?
A) Local Access Network
B) Local Area Network
C) Long Area Network
D) Logical Area Network
Answer: B) Local Area Network
Explanation: Computers and other devices are connected by local area networks within a specific physical space, like a house or business.
Question 07: What is the purpose of a compiler?
A) To translate high-level programming code into machine code
B) To protect against computer viruses
C) To store and manage data
D) To connect to the internet
Answer: A) To translate high-level programming code into machine code
Explanation: A compiler transforms high-level programming code into computer executable machine code.
Question 08: Which of the following is output device?
A) Mouse
B) Scanner
C) Printer
D) Keyboard
Answer: c) Printer
Explanation: A printer, for example, is an output device that turns processed data or information into a physical object.
Question 09: What is a virus in the context of computers?
A) A physical component of a computer system
B) A type of network connection
C) A malicious software program
D) An input device
Answer: C) A malicious software program
Explanation: An instance of malicious software called a virus can propagate and damage data and computer systems.
Question 10: What is the purpose of an operating system?
A) Manages computer hardware and software resources
B) Provides physical protection to the computer
C) Controls the internet connection
D) Stores user data securely
Answer: A) Manages computer hardware and software resources
Explanation: The operating system of the computer is extremely important in managing and controlling the CPU, storages, and memory resources.
Question 11: Which of the following is a volatile memory?
A) RAM
B) ROM
C) Hard disk
D) Flash drive
Answer: A) RAM
Explanation: RAM (Random Access Memory) is a volatile memory that temporarily stores data and program instructions during computer operation. Its a contents are lost when the power is turned off.
Question 12: Which component is responsible for executing instructions in a computer?
A) CPU
B) GPU
C) RAM
D) Motherboard
Answer: A) CPU
Explanation: The Central Processing Unit is the primary component responsible for executing instructions and performing calculations in a computer.
Question 13: Which of the following is an input device?
A) Printer
B) Monitor
C) Keyboard
D) Speaker
Answer: C) Keyboard
Explanation: By pushing keys on a keyboard, users can enter information and commands into a computer.
Question 14: What does the acronym “URL” stand for?
A) Universal Remote Locator
B) Uniform Resource Locator
C) United Resource Link
D) Universal Routing Language
Answer: B) Uniform Resource Locator
Explanation: URL is a web address that tells you where to find a specific resource on the Internet.
Question 15: What is the purpose of a firewall?
A) Protects against physical damage
B) Filters network traffic and prevents unauthorized access
C) Stores and organizes data files
D) Manages computer peripherals
Answer: B) Filters network traffic and prevents unauthorized access
Explanation: A firewall filters network traffic while guarding against unauthorized access to a computer or network.
Question 16: What is the function of an output device?
A) Enters data into a computer
B) Stores data temporarily
C) Displays or presents processed data
D) Executes program instructions
Answer: C) Displays or presents processed data
Explanation: An output device presents or displays the processed information from a computer, such as a monitor or printer.
Question 17: What does the acronym “CPU” stand for?
A) Central Processing Unit
B) Computer Processing Unit
C) Control Processing Unit
D) Central Power Unit
Answer: A) Central Processing Unit
Explanation: The Central Processing Unit is the primary component of a computer responsible for executing instructions and performing calculations.
Question 18: What is a virus in the context of computers?
A) A software program used for video editings
B) A malicious program that can replicate and infect other computers
C) A type of computer hardware component
D) An encryption algorithm
Answer: B) A malicious program that can replicate and infect other computers
Explanation: A computer virus is a harmful program that can spread to other computers and replicate itself, corrupting data and sucking up system resources.
Question 19: What is the function of an operating system?
A) Manages computer hardware and software resources
B) Creates graphics for video games
C) Performs mathematical calculations
D) Connects to the internet
Answer: A) Manages computer hardware and software resources
Explanation: The operating system offers a user interface, controls the hardware and software resources of the computer, and makes it easier for applications to run.
Question 20: What does CPU stand for?
A) Central Programming Unit
B) Central Processing Unit
C) Computer Program Unit
D) Computer Processing Unit
Answer: B) Central Processing Unit
Explanation: CPU stands for Central Processing Unit. It is a primary component of a computer that carries out instructions of a computer program by performings basic arithmetic, control, logical, and input/output (I/O) operation
Conclusion:
These questions cover some fundamental concepts in computer science. I hope the explanations help clarify the concepts for you.
Please note that these questions cover some fundamental concepts in computer science. If you have any specific topics or areas you’d like to explore further, feel free to ask!
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