Computer Fundamentals MCQs

Computer

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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Practice Questions

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Question #81
The small, high-speed temporary storage registers located directly inside the CPU chip to hold immediate data operands are part of the:
A. Processor Register Array
B. Auxiliary Memory
C. Secondary Storage Unit
D. Virtual Storage Unit
Discuss
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Correct Answer: Option A

Explanation:
Registers are ultra-fast, local memory cells inside the CPU used to hold data currently undergoing immediate processing.
This question belongs to: Computer Computer Fundamentals
Question #82
What structural component was predominantly used for internal primary data storage during the first generation of computers?
A. Integrated Silicon Chips
B. Floppy Disks
C. Magnetic Core Memory
D. Magnetic Drums
Discuss
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Correct Answer: Option D

Explanation:
First-generation computers used large, rotating magnetic drums as their primary internal mechanism for holding electronic data states.
This question belongs to: Computer Computer Fundamentals
Question #83
Which of the following units converts processed binary data from the internal processor back into a form that human operators can read and understand?
A. Input Unit
B. Output Unit
C. Arithmetic Logic Unit
D. Control Unit
Discuss
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Correct Answer: Option B

Explanation:
The output unit (monitors, printers) takes binary numbers from the CPU and converts them back into human-readable text, graphics, or audio.
This question belongs to: Computer Computer Fundamentals
Question #84
An automated assembly line tracking machine that constantly measures physical automobile alignments and flags anomalies on a terminal is a:
A. Pure Analog Computer
B. Hybrid Computer
C. Pure Digital Computer
D. Supercomputer
Discuss
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Correct Answer: Option B

Explanation:
It operates as a hybrid computer because it converts continuous physical physical measurements into digital signals for data processing.
This question belongs to: Computer Computer Fundamentals
Question #85
The complete set of virtual programs, routines, and electronic operational code that directs hardware components to execute tasks is called:
A. Firmware
B. Software
C. Liveware
D. Hardware
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Correct Answer: Option B

Explanation:
Software refers to the non-tangible programs, scripts, and instructions that tell a computer system exactly how to perform specific tasks.
This question belongs to: Computer Computer Fundamentals
Question #86
Which computing generation is explicitly associated with Very Large Scale Integration (VLSI) technology and the rise of personal home computers (PCs)?
A. Fourth Generation
B. Second Generation
C. Third Generation
D. Fifth Generation
Discuss
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Correct Answer: Option A

Explanation:
The Fourth Generation brought VLSI microprocessors into production, making small, affordable personal home computers a reality.
This question belongs to: Computer Computer Fundamentals
Question #87
A classic example of a second-generation computer system that relied entirely on transistors instead of vacuum tubes is the:
A. Apple II
B. ENIAC
C. Cray-1
D. IBM 1401
Discuss
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Correct Answer: Option D

Explanation:
The IBM 1401 was a highly successful commercial business computer belonging to the second-generation transistor era.
This question belongs to: Computer Computer Fundamentals
Question #88
Which characteristic of a computer allows it to retain data indefinitely, making information instantly retrievable at any future time?
A. Versatility
B. Storage Capacity
C. Diligence
D. Speed
Discuss
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Correct Answer: Option B

Explanation:
Storage capacity (both primary and secondary memory) enables a computer to store massive amounts of records securely for subsequent reuse.
This question belongs to: Computer Computer Fundamentals
Question #89
Who is historically celebrated as the 'First Computer Programmer' for writing an algorithm intended for execution on Babbage's Analytical Engine?
A. Charles Babbage
B. Herman Hollerith
C. Lady Ada Lovelace
D. Grace Hopper
Discuss
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Correct Answer: Option C

Explanation:
Ada Lovelace wrote the first machine algorithm for Babbage's analytical engine, earning her historical credit as the first computer programmer.
This question belongs to: Computer Computer Fundamentals
Question #90
The electronic clock speed of an early first-generation computer was generally calculated and tracked using which measurement scale?
A. Milliseconds
B. Microseconds
C. Nanoseconds
D. Picoseconds
Discuss
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Correct Answer: Option A

Explanation:
First-generation vacuum tube systems were relatively slow by modern metrics, operating with instruction times measured in milliseconds.
This question belongs to: Computer Computer Fundamentals
Question #91
Which component acts as the 'brain' of the computer system, housing the circuitry that executes all primary logical and arithmetic procedures?
A. Central Processing Unit
B. Hard Disk Drive
C. Motherboard Bus
D. Random Access Memory
Discuss
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Correct Answer: Option A

Explanation:
The Central Processing Unit (CPU) is known as the brain because it interprets instructions, handles calculations, and runs operations.
This question belongs to: Computer Computer Fundamentals
Question #92
What major environmental drawback was heavily associated with first-generation computers like ENIAC and EDVAC?
A. They required wireless satellite infrastructure.
B. They emitted high-frequency radiation.
C. They emitted massive heat, consumed tremendous power, and required heavy air conditioning.
D. They relied entirely on expensive silicon wafers.
Discuss
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Correct Answer: Option C

Explanation:
Vacuum tubes pulled immense electric currents and generated immense heat, leading to frequent filament burnouts and demanding complex cooling rooms.
This question belongs to: Computer Computer Fundamentals
Question #93
An electronic vehicle dashboard speedometer that continuously reads wheel rotation speeds and renders them via an analog needle dial is a/an:
A. Mainframe Interface
B. Hybrid Computer
C. Analog Device
D. Digital Computer
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Correct Answer: Option C

Explanation:
Devices that measure continuous physical movement or voltage variations without digitizing them into binary numbers are analog systems.
This question belongs to: Computer Computer Fundamentals
Question #94
The specialized, high-speed memory unit that sits directly between the main RAM and the CPU to store frequently accessed data instructions temporarily is known as:
A. Virtual Memory
B. Cache Memory
C. Secondary Storage
D. Flash Storage
Discuss
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Correct Answer: Option B

Explanation:
Cache memory is a very fast, small static memory block that holds copies of active RAM data to decrease CPU data retrieval delay.
This question belongs to: Computer Computer Fundamentals
Question #95
Which generation of computers saw the development of advanced parallel processing systems, quantum mechanics research, and natural voice interfaces?
A. Third Generation
B. Second Generation
C. Fifth Generation
D. Fourth Generation
Discuss
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Correct Answer: Option C

Explanation:
The Fifth Generation encompasses futuristic technologies like parallel massive architectures, neural networks, and speech recognition.
This question belongs to: Computer Computer Fundamentals
Question #96
The fundamental design constraint that states a computer cannot experience independent feelings, bias, or personal intuition is referred to as:
A. High Accuracy
B. Diligence
C. No IQ
D. No Feelings
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Correct Answer: Option D

Explanation:
Computers operate entirely on binary instructions and lack emotional awareness, subjective bias, or personal psychological feelings.
This question belongs to: Computer Computer Fundamentals
Question #97
Which historical mechanical device featured a grid of sliding beads on wires and was split into a top section ('Heaven') and a bottom section ('Earth')?
A. Abacus
B. Napier's Bones
C. Slide Rule
D. Pascaline
Discuss
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Correct Answer: Option A

Explanation:
Traditional Chinese abacuses (Suanpan) feature a structural upper deck ('Heaven') and a lower deck ('Earth') for positional base-5 arithmetic.
This question belongs to: Computer Computer Fundamentals
Question #98
A type of permanent secondary storage that reads and writes data magnetically onto rotating circular platters is a:
A. Compact Disc
B. Hard Disk Drive
C. EEPROM Chip
D. Solid State Drive
Discuss
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Correct Answer: Option B

Explanation:
Hard Disk Drives (HDDs) use non-volatile magnetic storage technology consisting of spinning metal platters and read/write heads.
This question belongs to: Computer Computer Fundamentals
Question #99
Which of the following functions is completely handled by the internal Control Unit of a standard Von Neumann processor architecture?
A. Comparing string lengths.
B. Storing files permanently.
C. Adding two floating-point numbers.
D. Decoding instructions fetched from memory.
Discuss
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Correct Answer: Option D

Explanation:
The Control Unit interprets and decodes instruction opcodes, orchestrating how data moves among registers and processing execution units.
This question belongs to: Computer Computer Fundamentals
Question #100
What basic operational requirement must be met before a computer can execute any high-level program or application software?
A. The computer must be connected to an active network server.
B. The processor must use an analog converter loop.
C. The program must be compiled into machine-readable binary code.
D. The system must clear all volatile registers permanently.
Discuss
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Correct Answer: Option C

Explanation:
Processors can only execute binary instructions (machine language); thus, high-level code must be compiled or interpreted first.
This question belongs to: Computer Computer Fundamentals

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