Free Computer Fundamentals MCQs with Answers

1. RAM is best described as which type of memory?

• 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. ROM retains data without power, and hard disks and SSDs provide permanent secondary storage.

2. Who is known as the inventor of Artificial Intelligence?

• 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. Alan Turing made foundational contributions to computing and AI but is not usually called its inventor.

3. Control unit of a digital computer is often called the ____________?

• 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. It is not the main memory or the clock, although the clock helps regulate operations.

4. Mouse also known as pointing device developed by: _________?

• 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. Charles Babbage, Ada Lovelace and Alan Turing are associated with other foundational contributions.

5. Ada Lovelace was the first programmer woman in computer history, she also known as ________.

• 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. She wrote an algorithm for Charles Babbage's Analytical Engine.

6. What is the main difference between a mainframe and a super 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 many concurrent jobs and users. The distinction is about workload and design priorities, not simply physical size.

7. MSI stands for___________?

• 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. Thus the intended expansion is Medium Scale Integrated Circuits.

8. ALU is____________?

• 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. Control and memory functions are handled by other parts of the computer system.

9. The computer that process both analog and digital is called____________?

• 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 precise control. Analog-only and digital-only computers use one processing approach.

10. Analog computer works on the supply of ____________?

• 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. Digital computers instead use discrete, separate values or pulses.