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 #1
Which of the following characteristics of a computer system protects it from becoming tired, bored, or losing concentration even after working for long hours?
A. Versatility
B. Accuracy
C. Speed
D. Diligence
Discuss
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Correct Answer: Option D

Explanation:
Diligence is the characteristic that allows a computer to perform repetitive tasks for long periods without experiencing physical exhaustion or lack of focus.
This question belongs to: Computer Computer Fundamentals
Question #2
In the context of computer generations, which core electronic component shifted computers from the first generation to the second generation?
A. Microprocessors
B. Transistors
C. Vacuum Tubes
D. Integrated Circuits
Discuss
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Correct Answer: Option B

Explanation:
Second-generation computers replaced bulky, heat-producing vacuum tubes with smaller, more efficient transistors.
This question belongs to: Computer Computer Fundamentals
Question #3
Which type of computer is designed to process continuous physical data such as electrical voltage, temperature, or pressure rather than discrete numerical values?
A. Mainframe Computer
B. Digital Computer
C. Analog Computer
D. Hybrid Computer
Discuss
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Correct Answer: Option C

Explanation:
Analog computers operate on continuous electrical signals or physical magnitudes rather than discrete binary data.
This question belongs to: Computer Computer Fundamentals
Question #4
The architectural concept of storing both instructions and data in the same memory unit, which forms the basis of most modern computers, was introduced by whom?
A. Alan Turing
B. Blaise Pascal
C. Charles Babbage
D. John von Neumann
Discuss
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Correct Answer: Option D

Explanation:
The stored-program concept, where instructions and data coexist in the same memory space, is known as the Von Neumann Architecture.
This question belongs to: Computer Computer Fundamentals
Question #5
Which generation of computers introduced Ultra Large Scale Integration (ULSI) technology, integrating millions of electronic components onto a single microchip?
A. Fourth Generation
B. Third Generation
C. Sixth Generation
D. Fifth Generation
Discuss
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Correct Answer: Option D

Explanation:
The Fifth Generation utilizes ULSI technology along with artificial intelligence, whereas the Fourth Generation primarily relied on VLSI (Very Large Scale Integration).
This question belongs to: Computer Computer Fundamentals
Question #6
Which class of computers is specifically optimized to manage massive transaction processing and support thousands of simultaneous users in large enterprises like banks or airline reservation systems?
A. Mainframe Computers
B. Minicomputers
C. Workstations
D. Supercomputers
Discuss
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Correct Answer: Option A

Explanation:
Mainframe computers excel at high-volume transaction processing and simultaneous user handling, whereas supercomputers are optimized for complex computational speed.
This question belongs to: Computer Computer Fundamentals
Question #7
Which computer system from the first-generation era is widely recognized as the first general-purpose electronic digital computer?
A. EDSAC
B. UNIVAC I
C. EDVAC
D. ENIAC
Discuss
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Correct Answer: Option D

Explanation:
ENIAC (Electronic Numerical Integrator and Computer), designed by Mauchly and Eckert, was the first general-purpose electronic programmable digital computer.
This question belongs to: Computer Computer Fundamentals
Question #8
A petrol pump dispenser measures the flow of fuel continuously and displays the total price numerically on a screen. This device is an example of which type of computer?
A. Hybrid Computer
B. Mainframe Computer
C. Digital Computer
D. Analog Computer
Discuss
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Correct Answer: Option A

Explanation:
A hybrid computer combines the features of both analog (measuring continuous flow) and digital (displaying discrete numerical values) systems.
This question belongs to: Computer Computer Fundamentals
Question #9
Which component inside a CPU directs the flow of signals and coordinates the activities of all other functional units of the computer?
A. Primary Storage Unit
B. Accumulator
C. Arithmetic Logic Unit
D. Control Unit
Discuss
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Correct Answer: Option D

Explanation:
The Control Unit (CU) acts as the supervisor of the system, fetching instructions, decoding them, and dispatching control signals across the computer.
This question belongs to: Computer Computer Fundamentals
Question #10
The term 'GIGO' (Garbage In, Garbage Out) directly highlights which fundamental characteristic of a computer system?
A. Storage Capacity
B. Versatility
C. Speed
D. Accuracy
Discuss
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Correct Answer: Option D

Explanation:
GIGO means that the accuracy of a computer's output depends entirely on the accuracy of the input data it receives.
This question belongs to: Computer Computer Fundamentals
Question #11
Which high-level programming languages were primarily developed and popularized during the second generation of computers?
A. C and C++
B. FORTRAN and COBOL
C. Machine language and Assembly language
D. Java and Python
Discuss
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Correct Answer: Option B

Explanation:
Early high-level languages like FORTRAN (Formula Translation) and COBOL (Common Business-Oriented Language) emerged during the second generation.
This question belongs to: Computer Computer Fundamentals
Question #12
What technology replaced individual transistors in third-generation computers, leading to a massive reduction in computer size and heat production?
A. Integrated Circuits
B. Biochips
C. Microprocessors
D. Vacuum Tubes
Discuss
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Correct Answer: Option A

Explanation:
Third-generation computers utilized Integrated Circuits (ICs), which combined multiple transistors and resistors on a single silicon chip.
This question belongs to: Computer Computer Fundamentals
Question #13
Which performance metrics are typically used to measure the processing speed of a modern Supercomputer?
A. FLOPS
B. MIPS
C. MHz
D. Baud
Discuss
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Correct Answer: Option A

Explanation:
Supercomputer performance is measured in FLOPS (Floating-Point Operations Per Second), while general processors often use MIPS (Millions of Instructions Per Second).
This question belongs to: Computer Computer Fundamentals
Question #14
What does the characteristic of 'Versatility' imply in a computer system?
A. The speed at which calculations are completed.
B. The ability to run without any error or downtime.
C. The power to retain massive amounts of non-volatile data.
D. The capacity to perform entirely different types of tasks sequentially or simultaneously.
Discuss
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Correct Answer: Option D

Explanation:
Versatility refers to a computer's ability to switch from one completely different task (like playing audio) to another (like financial drafting) seamlessly.
This question belongs to: Computer Computer Fundamentals
Question #15
The iconic Intel 4004 chip, introduced in 1971, marked the dawn of which computer generation?
A. Fourth Generation
B. Fifth Generation
C. Second Generation
D. Third Generation
Discuss
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Correct Answer: Option A

Explanation:
The introduction of the microprocessor (like the Intel 4004) initiated the Fourth Generation of computers.
This question belongs to: Computer Computer Fundamentals
Question #16
Which type of computer system, also colloquially known as a 'Midrange Computer', is typically used by medium-sized businesses to serve a small network of connected workstations?
A. Embedded Computer
B. Supercomputer
C. Minicomputer
D. Microcomputer
Discuss
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Correct Answer: Option C

Explanation:
Minicomputers are mid-sized, multi-user computers that fall between microcomputers (PCs) and large mainframes in terms of capacity and processing power.
This question belongs to: Computer Computer Fundamentals
Question #17
A microprocessor chip designed exclusively to perform a dedicated, repetitive control function inside an appliance like a smart washing machine or microwave is classified as an:
A. Embedded Computer
B. Mainframe Computer
C. Asynchronous Computer
D. Analog Computer
Discuss
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Correct Answer: Option A

Explanation:
Embedded computers are specialized systems built directly inside other devices to handle dedicated control functions.
This question belongs to: Computer Computer Fundamentals
Question #18
Which mechanical computing device, designed by Charles Babbage in the 1830s, featured an 'Analytical Engine' concept containing an ' Mill' and a 'Store'?
A. Pascaline
B. Tabulating Machine
C. Analytical Engine
D. Difference Engine
Discuss
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Correct Answer: Option C

Explanation:
Babbage's Analytical Engine introduced structural concepts equivalent to the modern CPU ('Mill') and memory ('Store').
This question belongs to: Computer Computer Fundamentals
Question #19
Which of the following describes the lack of an innate intelligence or independent decision-making capability in a traditional computer system?
A. No IQ
B. Volatility
C. No Feelings
D. Diligence
Discuss
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Correct Answer: Option A

Explanation:
Computers possess 'No IQ'; they cannot take independent decisions beyond the predefined logic and code provided by a human programmer.
This question belongs to: Computer Computer Fundamentals
Question #20
Which tracking or data organizing system developed by Herman Hollerith was successfully used in the 1890 United States Census?
A. Abacus
B. Slide Rule
C. Step Reckoner
D. Punched Card Tabulating Machine
Discuss
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Correct Answer: Option D

Explanation:
Herman Hollerith invented the punched-card tabulating machine to automate data compilation for the 1890 US Census, later giving rise to IBM.
This question belongs to: Computer Computer Fundamentals

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