Computer Fundamentals MCQs

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Computer Fundamentals MCQs

Practice Computer Fundamentals MCQs with answers and detailed explanations covering computer basics, characteristics, types of computers, generations of computers and fundamental concepts frequently asked in SSC, Railway, Banking, UPSC, JKSSB and other competitive exams.

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Total Questions

Practice Questions

Page 10 of 17
Question #181
Which of the following is a secondary storage device?
A. Cache
B. Hard disk
C. Registers
D. RAM
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Correct Answer: Option B

Explanation:
Hard disk is secondary storage, providing permanent data storage even when powered off.
This question belongs to: Computer Computer Fundamentals
Question #182
What is the function of an interpreter?
A. Manages memory
B. Converts binary to decimal
C. Translates high-level code to machine code line by line
D. Compiles entire code
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Correct Answer: Option C

Explanation:
An interpreter translates and executes source code line by line, without producing a separate machine code file.
This question belongs to: Computer Computer Fundamentals
Question #183
Which of the following is a characteristic of third-generation computers?
A. Used punch cards
B. Used magnetic drums
C. Used vacuum tubes
D. Used keyboards and monitors
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Correct Answer: Option D

Explanation:
Third-generation computers introduced keyboards for input and monitors for output, along with integrated circuits.
This question belongs to: Computer Computer Fundamentals
Question #184
What is the full form of ASCII?
A. American System Code for Information Interchange
B. American Standard Code for International Interchange
C. American Standard Code for Information Interchange
D. Advanced Standard Code for Information Interchange
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Correct Answer: Option C

Explanation:
ASCII is a character encoding standard for electronic communication, representing text in computers.
This question belongs to: Computer Computer Fundamentals
Question #185
Which type of computer is designed for a single user?
A. Mainframe
B. Supercomputer
C. Microcomputer
D. Minicomputer
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Correct Answer: Option C

Explanation:
Microcomputers, like desktops and laptops, are designed for individual use.
This question belongs to: Computer Computer Fundamentals
Question #186
What is the purpose of the system bus?
A. Transfers data between components
B. Controls input devices
C. Executes instructions
D. Stores data permanently
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Correct Answer: Option A

Explanation:
The system bus connects the CPU, memory, and I/O devices, allowing data transfer.
This question belongs to: Computer Computer Fundamentals
Question #187
Which of the following is not a type of computer based on size and power?
A. Supercomputer
B. Analog computer
C. Microcomputer
D. Minicomputer
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Correct Answer: Option B

Explanation:
Analog computers are classified by their operational principle (continuous vs. discrete), not size/power.
This question belongs to: Computer Computer Fundamentals
Question #188
What is the octal equivalent of decimal 12?
A. 13
B. 15
C. 14
D. 16
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Correct Answer: Option C

Explanation:
12 in decimal = 14 in octal (1*8 + 4 = 12).
This question belongs to: Computer Computer Fundamentals
Question #189
Which component of the CPU performs logical comparisons?
A. ALU
B. Registers
C. Cache
D. CU
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Correct Answer: Option A

Explanation:
The Arithmetic Logic Unit (ALU) performs arithmetic and logical operations, including comparisons.
This question belongs to: Computer Computer Fundamentals
Question #190
What is the main advantage of fifth-generation computers?
A. AI and parallel processing
B. Vacuum tubes
C. Integrated circuits
D. Use of transistors
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Correct Answer: Option A

Explanation:
Fifth-generation computers focus on artificial intelligence and parallel processing.
This question belongs to: Computer Computer Fundamentals
Question #191
Which of the following is a common input device for playing games?
A. Speaker
B. Plotter
C. Printer
D. Joystick
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Correct Answer: Option D

Explanation:
A joystick is an input device commonly used for gaming and simulations.
This question belongs to: Computer Computer Fundamentals
Question #192
What does the term 'bit' stand for?
A. Binary term
B. Bit information
C. Basic unit
D. Binary digit
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Correct Answer: Option D

Explanation:
Bit is a contraction of 'binary digit', the smallest unit of data.
This question belongs to: Computer Computer Fundamentals
Question #193
Which of the following is a characteristic of second-generation computers?
A. Used integrated circuits
B. Used microprocessors
C. Used magnetic core memory
D. Used vacuum tubes
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Correct Answer: Option C

Explanation:
Second-generation computers used magnetic core memory and transistors.
This question belongs to: Computer Computer Fundamentals
Question #194
What is the role of the clock speed in a computer?
A. Determines the speed of data transfer
B. Determines memory size
C. Determines display resolution
D. Determines the number of instructions executed per second
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Correct Answer: Option D

Explanation:
Clock speed (measured in GHz) indicates how many cycles per second the CPU can execute, affecting instruction throughput.
This question belongs to: Computer Computer Fundamentals
Question #195
What is the purpose of the interrupt mechanism?
A. To increase clock speed
B. To store data
C. To manage power
D. To pause execution and handle urgent events
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Correct Answer: Option D

Explanation:
Interrupts allow the CPU to temporarily stop ongoing tasks to respond to high-priority events.
This question belongs to: Computer Computer Fundamentals
Question #196
Which type of computer is used in hospitals for patient monitoring?
A. Mainframe
B. Minicomputer
C. Embedded computer
D. Supercomputer
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Correct Answer: Option C

Explanation:
Embedded computers are used in medical devices like patient monitors for dedicated functions.
This question belongs to: Computer Computer Fundamentals
Question #197
What is the hexadecimal equivalent of binary 1111?
A. E
B. F
C. 11
D. 10
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Correct Answer: Option B

Explanation:
Binary 1111 equals 15 decimal, which is F in hexadecimal.
This question belongs to: Computer Computer Fundamentals
Question #198
Which component holds the data and instructions for the CPU to process?
A. Hard disk
B. Cache memory
C. Primary memory (RAM)
D. Secondary memory
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Correct Answer: Option C

Explanation:
Primary memory (RAM) holds active data and instructions for CPU processing.
This question belongs to: Computer Computer Fundamentals
Question #199
What is the main feature of analog computers?
A. Process discrete data
B. High precision
C. Use binary
D. Process continuous data
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Correct Answer: Option D

Explanation:
Analog computers process continuous data, such as voltage or temperature, unlike digital computers.
This question belongs to: Computer Computer Fundamentals
Question #200
Which of the following is an example of system software?
A. Microsoft Word
B. Windows 10
C. Google Chrome
D. Adobe Photoshop
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Correct Answer: Option B

Explanation:
Operating systems like Windows are system software, while applications are user programs.
This question belongs to: Computer Computer Fundamentals

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