Computer Knowledge

Computer Fundamentals and System Concepts

2,255 Questions

Computer fundamentals and system concepts questions cover core hardware components, operating systems, and historical computer milestones. Topics include the kernel, central processing unit, and basic computing terminology. These foundational questions are strictly essential for scoring well in computer knowledge sections.

Central processing unitComputer operating systemsSupercomputer milestonesSystem registry functionsKernel operationsAndroid applications

Computer Fundamentals and System Concepts Questions

Multiple choice

What is a program in execution called?

  1. Algorithm

  2. Process

  3. Subroutine

  4. Object code

  5. Instruction
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A process is an instance of a computer program that is being executed. It contains the program code and its current activity.

Multiple choice

Which of the following is a useful and desirable application software?

  1. Worm

  2. Trozan horse

  3. Rootkits

  4. Killer application

  5. Spyware
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A killer application is any computer program that is so necessary or desirable that it proves the core value of some larger technology, such as computer hardware, gaming console, software, a programming language, software platform, or an operating system.

Multiple choice

In computer system, A20 LINE refers to_______.

  1. address line in x86 based PC

  2. root directory address

  3. system classification

  4. BIOS setting

  5. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 It referm to the address line in an x86 based PC that points beyond one Megabyte.

Multiple choice

EDSAC computers were made in the ___ generation of computers.

  1. 1st

  2. 2nd

  3. 3rd

  4. 4th

  5. 5th
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Electronic Delay Storage Automatic Calculator (EDSAC), developed at Britain’s Cambridge University, ran its first programs in 1949 in first generation of computer. It became the first stored-program computer in regular use, heralding the transition from test to tool.

Multiple choice

Which of the following best describes the process of turning off the power to a computer and then turning the power back on?

  1. Warm boot

  2. Power boot

  3. Cold boot

  4. Refresh

  5. _
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In this, we start the computer when its power is turned off. To perform a cold boot while the computer is still running, Shut Down must be selected from the menu first. Once the computer is turned off, turning it back on performs the cold boot.

Multiple choice

ALU is a part of ___________.

  1. primary memory

  2. control unit

  3. central processing unit

  4. secondary memory

  5. output device
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

ALU is the part of CPU. ALU performs arithmetical or logical operations on the processed data.

Multiple choice

What is the role of control unit in CPU?

  1. It is responsible for the communication among the input/output devices, obtains the instruction from memory and manage all the units of the computer.

  2. It does not store data.

  3. It is responsible for arithmetic operations in the computer.

  4. Only (1) and (2)

  5. (1), (2) and (3) all are true.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Yes, all the there are correct.