Free Computer Fundamentals MCQs with Answers
446 Computer Fundamentals MCQs from Computer Science and IT, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Computer fundamentals covers the history and generations of computers, their characteristics, applications and limitations, and the basic data-processing cycle. It includes binary, decimal, octal and hexadecimal number systems, units of storage, input and output devices, memory types, operating systems, and the distinction between raw data and processed information.
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- A. Permanent storage
- B. Volatile memory
- C. Read-only memory
- D. Optical storage
Explanation: RAM (Random Access Memory) is volatile — its contents are lost when power is switched off.
Correct answer: Volatile memory- A. Classic Babbage
- B. John McCarthy
- C. Alan Turing
- D. None of these
Explanation: John McCarthy coined the term artificial intelligence in 1956 and helped establish AI as an academic field.
Correct answer: John McCarthy- A. clock
- B. nerve center
- C. main memory
- D. all of them
Explanation: The control unit directs and coordinates the operations of the computer, so it is often called the nerve centre.
Correct answer: nerve center- A. Charles Babbage
- B. Ada Lovelace
- C. Alan Turing
- D. Douglas Engellbert
Explanation: Douglas Engelbart developed the early computer mouse, which is a pointing device.
Correct answer: Douglas Engellbert- A. Mother of Calculation
- B. Mother of Monitor
- C. Mother of Computer
- D. None
Explanation: Ada Lovelace is widely called the mother of computer programming, so Mother of Computer is the intended option.
Correct answer: Mother of Computer- A. Super computer is much larger than mainframe computers
- B. Super computers are much smaller than mainframe computers
- C. Supercomputers are focused to execute few programs as fast as possible while mainframe uses its power to execute as many programs concurrently
- D. Supercomputers are focused to execute as many programs as possible while mainframe uses its power to execute few programs as fast as possible.Fun & Trivia
Explanation: Supercomputers are optimized for extremely rapid execution of specialized calculations, while mainframes emphasize reliable processing of…
Correct answer: Supercomputers are focused to execute few programs as fast as possible while mainframe uses its power to execute as many programs concurrently- A. Medium Scale Integrated Circuits
- B. Medium System Integrated Circuits
- C. Medium Scale Intelligent Circuit
- D. Medium System Intelligent Circuit
Explanation: MSI stands for Medium-Scale Integration, referring to integrated circuits containing more components than SSI but fewer than LSI circuits.
Correct answer: Medium Scale Integrated Circuits- A. Arithmetic Logic Unit
- B. Array Logic Unit
- C. Application Logic Unit
- D. None of above
Explanation: The ALU is the Arithmetic Logic Unit, the CPU component that performs arithmetic operations and logical comparisons.
Correct answer: Arithmetic Logic Unit- A. Analog computer
- B. Digital computer
- C. Hybrid computer
- D. Mainframe computer
Explanation: A hybrid computer combines analog processing, useful for continuous physical values, with digital processing, useful for discrete data and…
Correct answer: Hybrid computer- A. Continuous electrical pulses
- B. Electrical pulses but not continuous
- C. Magnetic strength
- D. None of the above
Explanation: An analog computer processes continuously varying physical quantities, commonly represented by continuous electrical signals.
Correct answer: Continuous electrical pulses- A. Digital Clock
- B. Automobile analog speed meter
- C. Clock with a dial and two hands
- D. All of them
Explanation: A digital clock displays time as discrete numerical values, so it is a digital device.
Correct answer: Digital Clock- A. ALU
- B. Memory
- C. CPU
- D. Control unit
Explanation: The CPU is called the computer's brain because it interprets and executes instructions and coordinates other components.
Correct answer: CPU- A. 1024 bits
- B. 1032 megabytes
- C. 1024 kilobytes
- D. 1024 megabytes
Explanation: Using the common binary memory convention, 1 gigabyte equals 1024 megabytes, and each megabyte contains 1024 kilobytes.
Correct answer: 1024 megabytes- A. Uni-process
- B. Multiprocessor
- C. Multi-threaded
- D. Multi-programming
Explanation: A computer containing two or more processors is called a multiprocessor system.
Correct answer: Multiprocessor- A. Arithmetic operation
- B. Logical operation
- C. Storage and relative
- D. All the above
Explanation: Computers perform arithmetic and logical processing and also store and retrieve data.
Correct answer: All the above- A. Allen Turing
- B. Charles Babbage
- C. Simur Cray
- D. Augusta Adaming
Explanation: Charles Babbage is called the father of the computer because his Analytical Engine introduced many ideas used in modern general-purpose…
Correct answer: Charles Babbage- A. Latin
- B. German
- C. French
- D. Arabic
Explanation: The word computer comes from the Latin computare, meaning to calculate or reckon.
Correct answer: Latin- A. Gigabyte = 1000 megabytes
- B. Exabyte = 1000 Petabytes
- C. Yottabyte= 1000 Zettabyte
- D. Zettabyte = 1000 Exabyte
Explanation: Yottabyte is the largest named SI decimal unit in the options, and 1 yottabyte equals 1000 zettabytes.
Correct answer: Yottabyte= 1000 Zettabyte- A. Compiler
- B. Loader
- C. Operating
- D. Assembler
Explanation: A computer needs an operating system to manage hardware and provide the environment in which programs run during booting.
Correct answer: Operating- A. Windows 9 Has a New Look
- B. Windows 9 Snap Layouts
- C. Multiple Desktops in Windows 9
- D. Window 9 Not launched
Explanation: Microsoft did not release Windows 9; it moved from Windows 8.1 to Windows 10, partly to distinguish the new version from older Windows 9x…
Correct answer: Window 9 Not launchedComputer Fundamentals MCQs: common questions
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There are 446 Computer Fundamentals MCQs in the Computer Science and IT bank, shown 20 to a page with the correct answer and an explanation on each.
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