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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446 questions · page 3 of 23
- A. Ctrl + Esc
- B. WIN+ Esc
- C. Alt + Esc
- D. Shift + Esc
Explanation: Ctrl+Esc opens the Windows Start menu, which is what the question calls the startup button.
Correct answer: Ctrl + Esc- A. Command line interface (CLI)
- B. Graphical user interface (GUI)
- C. Touchscreen interface
- D. Drop down menu interface
Explanation: A command-line interface accepts typed commands and returns text-based results.
Correct answer: Command line interface (CLI)- A. CPU
- B. ALU
- C. Register
- D. None of these
Explanation: The CPU controls and coordinates the computer's operations by fetching and executing instructions.
Correct answer: CPU- A. Second generation
- B. Third generation
- C. Fourth generation
- D. Fifth generation
Explanation: The fourth generation began with the microprocessor, which placed the CPU on a single integrated circuit.
Correct answer: Fourth generation- A. Programming Intelligence
- B. Artificial Intelligence
- C. System Knowledge
- D. None of these
Explanation: Fifth-generation computers are associated with artificial intelligence, including natural-language processing and knowledge-based systems.
Correct answer: Artificial Intelligence- A. Function
- B. Modifier
- C. Control
- D. None of the above
Explanation: F1 through F12 are function keys because their actions depend on the software being used.
Correct answer: Function- A. Modifier
- B. Function
- C. Numeric
- D. Alphanumeric
Explanation: Ctrl, Shift, Alt and the Windows key modify the action of another key or key combination, so they are called modifier keys.
Correct answer: Modifier- A. RAM
- B. ROM
- C. Static RAM
- D. Cache memory
Explanation: Cache memory is a high-speed buffer between the CPU and main memory, storing frequently needed data and instructions.
Correct answer: Cache memory- A. Physical Machine
- B. Electronic Machine
- C. Chemical Machine
- D. Mechanical Machine
Explanation: A computer is an electronic machine that accepts data, processes it, stores it, and produces information.
Correct answer: Electronic Machine- A. 1 million bytes
- B. 1 trillion bytes
- C. 1 billion bytes
- D. None
Explanation: In the decimal storage convention commonly used in such MCQs, 1 GB equals 1 billion bytes.
Correct answer: 1 billion bytes- A. Intel 8008
- B. Intel 8080
- C. Intel 4004
- D. Motorola 6809
Explanation: Intel 4004, released in 1971, is generally recognized as the first commercially available microprocessor.
Correct answer: Intel 4004- A. Entered at different locations where it originates
- B. Sent to different locations from a central place
- C. Accessed from different places know as distribution points
- D. Distributed through a network
Explanation: Distributed data entry means entering data at the locations where it is generated or collected, rather than sending all source data to one…
Correct answer: Entered at different locations where it originates- A. Along technology
- B. Hybrid technology
- C. Digital technology
- D. none of the above
Explanation: Modern general-purpose computers process information using discrete binary values, so they are based on digital technology.
Correct answer: Digital technology- A. Coded
- B. Memorised
- C. Analysed
- D. Reduced to a series of logical steps
Explanation: A computer can perform a task when that task can be expressed as a finite series of logical steps, or an algorithm.
Correct answer: Reduced to a series of logical steps- A. each process is blocked and will remain so forever
- B. each process is terminated
- C. all processes are trying to kill each other
- D. None of these
Explanation: Deadlock occurs when processes are permanently blocked because each is waiting for a resource held by another process in the set.
Correct answer: each process is blocked and will remain so forever- A. Vector
- B. Raster
- C. Master
- D. both A & B
Explanation: The two basic categories of computer graphics are raster images, made from pixels, and vector images, defined by lines and mathematical…
Correct answer: both A & B- A. Lines
- B. Dots
- C. Scratches
- D. Lightings
Explanation: A digital raster picture is built from tiny dots called pixels, with each pixel storing colour information.
Correct answer: Dots- A. Circuits
- B. Wires
- C. Registers
- D. Bulbs
Explanation: A bus is a group of electrical wires or pathways that carries data, addresses, and control signals between computer components.
Correct answer: Wires- A. ROM
- B. Hard Disk
- C. Registers
- D. Circuits
Explanation: CPU registers are very small, high-speed storage locations used temporarily while instructions are being processed.
Correct answer: Registers- A. Back Up
- B. Buffer
- C. Binary file
- D. Data recorder
Explanation: A buffer is a temporary storage area that holds data while it is being transferred between devices or processes operating at different…
Correct answer: Buffer