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Computer Fundamentals, Hardware and Generations
Practice computer with 20 free MCQ questions covering static-gk. Detailed explanations in English and Hindi, perfect for UPSC, SSC, and competitive exam preparation.
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Computer Fundamentals, Hardware and Generations20:00
computer — Answer Key & Explanations (20 Questions)
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Attempt the quiz above first, then review every question with its correct answer and a short explanation below.
Q1.Who is known as the father of the computer?
- A.Alan Turing
- B.Bill Gates
- C.Charles Babbage✓ Correct Answer
- D.John von Neumann
Explanation: He designed the Analytical Engine.
Q2.The CPU is often called the ___ of the computer.
- A.heart
- B.memory
- C.monitor
- D.brain✓ Correct Answer
Explanation: It executes instructions.
Q3.One byte consists of how many bits?
- A.4
- B.16
- C.8✓ Correct Answer
- D.32
Explanation: A bit is a binary digit, 0 or 1.
Q4.Which memory loses its data when the power is switched off?
- A.RAM✓ Correct Answer
- B.ROM
- C.Hard disk
- D.CD-ROM
Explanation: RAM is volatile memory.
Q5.First-generation computers used:
- A.transistors
- B.integrated circuits
- C.microprocessors
- D.vacuum tubes✓ Correct Answer
Explanation: They were large and consumed much power.
Q6.A keyboard is an example of an:
- A.output device
- B.storage device
- C.processing unit
- D.input device✓ Correct Answer
Explanation: A monitor is an output device.
Q7.Second-generation computers used:
- A.vacuum tubes
- B.transistors✓ Correct Answer
- C.integrated circuits
- D.microprocessors
Explanation: They were smaller and faster than the first generation.
Q8.Third-generation computers were based on:
- A.integrated circuits✓ Correct Answer
- B.vacuum tubes
- C.transistors
- D.artificial intelligence
Explanation: The IC was developed in 1958-59.
Q9.Fourth-generation computers are based on the:
- A.vacuum tube
- B.transistor
- C.microprocessor✓ Correct Answer
- D.abacus
Explanation: Personal computers belong to this generation.
Q10.ENIAC, built in 1946, was the first:
- A.personal computer
- B.general-purpose electronic digital computer✓ Correct Answer
- C.laptop
- D.supercomputer
Explanation: It was built at the University of Pennsylvania.
Q11.The ALU in a CPU performs:
- A.printing
- B.arithmetic and logical operations✓ Correct Answer
- C.storage of files
- D.network routing
Explanation: ALU stands for Arithmetic Logic Unit.
Q12.ROM is a type of:
- A.volatile memory
- B.cache memory
- C.non-volatile memory✓ Correct Answer
- D.virtual memory
Explanation: It keeps data without power.
Q13.One kilobyte (KB) is equal to:
- A.1,000 bytes
- B.1,024 bytes✓ Correct Answer
- C.512 bytes
- D.1,048,576 bytes
Explanation: Memory units are based on powers of two.
Q14.A monitor is an example of an:
- A.input device
- B.processing unit
- C.memory unit
- D.output device✓ Correct Answer
Explanation: It displays the result of processing.
Q15.A hard disk is an example of:
- A.secondary storage✓ Correct Answer
- B.primary memory
- C.cache memory
- D.register
Explanation: Secondary storage is permanent.
Q16.The computer mouse was invented by:
- A.Steve Jobs
- B.Bill Gates
- C.Tim Berners-Lee
- D.Douglas Engelbart✓ Correct Answer
Explanation: He demonstrated it in 1968.
Q17.Who is regarded as the first computer programmer?
- A.Ada Lovelace✓ Correct Answer
- B.Grace Hopper
- C.Charles Babbage
- D.Alan Turing
Explanation: She wrote an algorithm for Babbage's Analytical Engine.
Q18.India's first supercomputer, developed by C-DAC in 1991, was:
- A.Pratyush
- B.PARAM 8000✓ Correct Answer
- C.Aaditya
- D.Anupam
Explanation: Vijay Bhatkar led its development.
Q19.The first commercial electronic computer was the:
- A.ENIAC
- B.EDVAC
- C.UNIVAC I✓ Correct Answer
- D.IBM PC
Explanation: It was delivered to the US Census Bureau in 1951.
Q20.Which is the fastest memory in a computer?
- A.Registers✓ Correct Answer
- B.RAM
- C.Cache memory
- D.Hard disk
Explanation: Registers sit inside the CPU.