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.

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Computer Fundamentals and System Concepts Questions

Multiple choice

What are the main components of a computer?

  1. Processor

  2. Memory

  3. Storage

  4. Input devices

  5. Output devices

  6. All of the above
Reveal answer Fill a bubble to check yourself
F Correct answer
Explanation

The main components of a computer are the processor, memory, storage, input devices, and output devices.

Multiple choice

What is the function of a processor?

  1. To control the flow of data and instructions

  2. To perform calculations and logical operations

  3. To store data and instructions

  4. To communicate with other computers
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The processor is the brain of the computer. It controls the flow of data and instructions, and performs calculations and logical operations.

Multiple choice

What is the purpose of an operating system?

  1. To manage the computer's resources

  2. To provide a user interface

  3. To run applications

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An operating system is a software program that manages the computer's resources, provides a user interface, and runs applications.

Multiple choice

Which of the following is a common type of malware?

  1. Virus

  2. Worm

  3. Trojan horse

  4. Ransomware
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A virus is a type of malware that can replicate itself and spread from one computer to another. It can attach itself to legitimate programs or files and execute its malicious code when the program or file is run.

Multiple choice

What was the first general-purpose mechanical computer?

  1. The Analytical Engine

  2. The Difference Engine

  3. The Jacquard Loom

  4. The Babbage Engine
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Analytical Engine was designed by Charles Babbage in the 19th century. It was a general-purpose mechanical computer that could perform a variety of calculations.

Multiple choice

What was the first electronic computer?

  1. The ENIAC

  2. The UNIVAC

  3. The IBM 701

  4. The CDC 6600
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The ENIAC was the first electronic computer, built in the United States in the 1940s.

Multiple choice

What was the first integrated circuit?

  1. The Fairchild Semiconductor LM301

  2. The Texas Instruments SN511

  3. The Motorola MC14000

  4. The Intel 4004
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Fairchild Semiconductor LM301 was the first integrated circuit, released in 1961.

Multiple choice

What is the main focus of research in the field of computer science?

  1. Studying the behavior of matter and energy

  2. Developing new medical treatments

  3. Designing and testing aircraft

  4. Creating computer simulations
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Computer science is the branch of STEM that deals with the study of computation, algorithms, data structures, and information processing.

Multiple choice

What is a Turing machine?

  1. A mathematical model of a computer.

  2. A physical computer.

  3. A programming language.

  4. A software application.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A Turing machine is a mathematical model of a computer that consists of a tape, a head that can read and write symbols on the tape, and a finite set of states. It is used to study the limits of computation.

Multiple choice

Which of the following is considered the first personal computer?

  1. The Apple I

  2. The IBM PC

  3. The Commodore 64

  4. The TRS-80
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Apple I was the first personal computer, as it was the first computer designed for individual use and sold as a complete system.

Multiple choice

Which technological innovation is associated with the term "Moore's Law"?

  1. Microprocessor

  2. Integrated Circuit

  3. Transistor

  4. Computer Chip
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Moore's Law, proposed by Gordon Moore in 1965, states that the number of transistors on an integrated circuit doubles about every two years. This observation has held true for several decades and has been a driving force behind the exponential growth of computing power.

Multiple choice

In "The Matrix", what is the name of the computer program that allows humans to enter the Matrix?

  1. The Red Pill

  2. The Blue Pill

  3. The White Pill

  4. The Black Pill
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Red Pill is a choice offered to Neo by Morpheus, which allows him to see the true nature of the Matrix and escape its control.

Multiple choice

What was the name of the computer virus that caused widespread damage in 1999?

  1. Melissa

  2. I Love You

  3. Code Red

  4. Nimda
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The computer virus I Love You caused widespread damage in 2000, infecting millions of computers worldwide.

Multiple choice

Which technological advancement enabled the development of the first computers?

  1. Transistors

  2. Vacuum tubes

  3. Integrated circuits

  4. Microprocessors
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vacuum tubes, developed in the early 20th century, were essential components in the first computers, serving as electronic switches and amplifiers.

Multiple choice

What is the difference between a microprocessor and a microcontroller?

  1. A microprocessor is a general-purpose computer, while a microcontroller is a single-chip computer.

  2. A microprocessor is used in desktop computers, while a microcontroller is used in embedded systems.

  3. A microprocessor has a faster clock speed than a microcontroller.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A microprocessor is a general-purpose computer that can be programmed to perform a variety of tasks. A microcontroller is a single-chip computer that is designed for a specific task. Microprocessors are used in desktop computers, laptops, and servers. Microcontrollers are used in embedded systems, such as cars, appliances, and industrial machinery.