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 7 of 17
Question #121
The physical collection of interconnected electronic buses and wires that move data bits directly between internal CPU registers and primary memory is the:
A. Peripheral Hub
B. Data Bus
C. Control Line
D. Address Decoder
Discuss
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Correct Answer: Option B

Explanation:
The Data Bus is the dedicated hardware pathway that transfers raw binary data bits among the CPU registers, memory units, and peripheral controllers.
This question belongs to: Computer Computer Fundamentals
Question #122
Which computer generation is explicitly distinguished by the ongoing research into biochips, gallium arsenide microchips, and massive neural network processing?
A. Third Generation
B. Second Generation
C. Fourth Generation
D. Fifth Generation
Discuss
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Correct Answer: Option D

Explanation:
The Fifth Generation covers contemporary and forward-looking research into advanced computing materials, biochips, and neural networks.
This question belongs to: Computer Computer Fundamentals
Question #123
An old-school mechanical device consisting of sliding rules and scale markers used by engineers to calculate multiplication and trigonometry via logarithmic scales is a:
A. Digital Calculator
B. Difference Engine
C. Slide Rule
D. Abacus Unit
Discuss
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Correct Answer: Option C

Explanation:
The Slide Rule is an early analog mechanical calculating device that uses physical alignment lengths on logarithmic scales to perform math.
This question belongs to: Computer Computer Fundamentals
Question #124
The basic concept of the Input-Process-Output (IPO) model means that data is transformed into a structured, meaningful asset called:
A. Binary Platter
B. Raw Code
C. Information
D. Mnemonic Strings
Discuss
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Correct Answer: Option C

Explanation:
Information is the contextualized, structured, and meaningful output that results from processing raw input data inside a computer system.
This question belongs to: Computer Computer Fundamentals
Question #125
Which major corporate computing entity was founded directly from the evolution of Herman Hollerith’s Tabulating Machine Company?
A. Intel
B. Microsoft
C. Apple
D. IBM
Discuss
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Correct Answer: Option D

Explanation:
Hollerith's business merged with others to form the Computing-Tabulating-Recording Company (CTR), which was renamed IBM (International Business Machines) in 1924.
This question belongs to: Computer Computer Fundamentals
Question #126
What type of computer system handles heavy concurrent enterprise multi-user requests, prioritizing constant data availability and safe transactional rollbacks over raw vector simulation speeds?
A. Personal Computer
B. Analog Computer
C. Supercomputer
D. Mainframe Computer
Discuss
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Correct Answer: Option D

Explanation:
Mainframes emphasize resilient data transaction processing, heavy I/O workflows, and multi-user database isolation over scientific raw math speed.
This question belongs to: Computer Computer Fundamentals
Question #127
The integration of thousands of individual transistors onto a single microchip matrix during the third generation of computers was made possible by:
A. Biochip Engineering
B. ULSI (Ultra Large Scale Integration)
C. VLSI (Very Large Scale Integration)
D. MSI and LSI (Medium / Large Scale Integration)
Discuss
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Correct Answer: Option D

Explanation:
Third-generation computers utilized Small, Medium, and early Large Scale Integration (LSI) to group arrays of transistors onto single Integrated Circuit chips.
This question belongs to: Computer Computer Fundamentals
Question #128
The operational speed phase where an internal CPU fetches a binary instruction string directly from main memory addresses is called:
A. Instruction Time (I-Time)
B. Write-back Phase
C. Interrupt Cycle
D. Execution Time (E-Time)
Discuss
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Correct Answer: Option A

Explanation:
I-Time (Instruction Time) encompasses the early steps of a processor cycle, specifically fetching and decoding an instruction from memory.
This question belongs to: Computer Computer Fundamentals
Question #129
Which of the following is considered the basic function of a computer?
A. Entertainment
B. Data processing
C. Communication
D. Power supply
Discuss
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Correct Answer: Option B

Explanation:
The fundamental function of a computer is data processing, which includes input, processing, output, and storage.
This question belongs to: Computer Computer Fundamentals
Question #130
What is the full form of ALU?
A. Array Logic Unit
B. Arithmetic Logic Unit
C. Arithmetic Local Unit
D. Access Logic Unit
Discuss
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Correct Answer: Option B

Explanation:
ALU stands for Arithmetic Logic Unit, the part of the CPU that performs arithmetic and logical operations.
This question belongs to: Computer Computer Fundamentals
Question #131
Which characteristic of a computer refers to its ability to perform tasks without getting tired?
A. Diligence
B. Speed
C. Versatility
D. Accuracy
Discuss
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Correct Answer: Option A

Explanation:
Diligence means a computer can work continuously for hours without fatigue or loss of concentration.
This question belongs to: Computer Computer Fundamentals
Question #132
What is the basic unit of data in a computer?
A. Word
B. Byte
C. Bit
D. Nibble
Discuss
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Correct Answer: Option C

Explanation:
The bit (binary digit) is the smallest unit of data in a computer, representing a 0 or 1.
This question belongs to: Computer Computer Fundamentals
Question #133
Which generation of computers used vacuum tubes?
A. First generation
B. Third generation
C. Second generation
D. Fourth generation
Discuss
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Correct Answer: Option A

Explanation:
First-generation computers (1940s-1950s) used vacuum tubes for circuitry and magnetic drums for memory.
This question belongs to: Computer Computer Fundamentals
Question #134
Which type of computer is the most powerful and expensive?
A. Supercomputer
B. Mainframe computer
C. Minicomputer
D. Microcomputer
Discuss
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Correct Answer: Option A

Explanation:
Supercomputers are the fastest, most powerful, and most expensive computers, used for complex scientific computations.
This question belongs to: Computer Computer Fundamentals
Question #135
Which device is an example of an input device?
A. Keyboard
B. Printer
C. Speaker
D. Monitor
Discuss
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Correct Answer: Option A

Explanation:
A keyboard is an input device used to enter data and instructions into a computer.
This question belongs to: Computer Computer Fundamentals
Question #136
What does RAM stand for?
A. Read Access Memory
B. Run Access Memory
C. Random Access Memory
D. Remote Access Memory
Discuss
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Correct Answer: Option C

Explanation:
RAM stands for Random Access Memory, which is volatile memory used for temporary data storage during processing.
This question belongs to: Computer Computer Fundamentals
Question #137
Which of the following is not a characteristic of a computer?
A. Storage
B. Emotion
C. Speed
D. Accuracy
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Correct Answer: Option B

Explanation:
Computers are emotionless; they lack feelings and cannot make decisions based on emotions.
This question belongs to: Computer Computer Fundamentals
Question #138
What is the primary language of computers?
A. Assembly language
B. C language
C. Machine language
D. High-level language
Discuss
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Correct Answer: Option C

Explanation:
Machine language, consisting of binary code (0s and 1s), is the native language of computers.
This question belongs to: Computer Computer Fundamentals
Question #139
Which component is considered the brain of the computer?
A. CPU
B. Hard disk
C. Monitor
D. RAM
Discuss
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Correct Answer: Option A

Explanation:
The Central Processing Unit (CPU) is often called the brain of the computer because it executes instructions.
This question belongs to: Computer Computer Fundamentals
Question #140
Which generation introduced integrated circuits?
A. First
B. Fourth
C. Third
D. Second
Discuss
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Correct Answer: Option C

Explanation:
Third-generation computers (1960s-1970s) used integrated circuits (ICs) instead of transistors.
This question belongs to: Computer Computer Fundamentals

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