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 the purpose of an operating system?

  1. To manage the computer's hardware and software resources

  2. To provide a user interface for the computer

  3. To run application programs

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

An operating system is a system software that manages the computer's hardware and software resources. The operating system provides a user interface for the computer, allowing users to interact with the computer. The operating system also runs application programs, which are software programs that perform specific tasks for the user.

Multiple choice

Which computer architecture is characterized by having multiple processing units that can execute instructions simultaneously?

  1. RISC

  2. CISC

  3. Multi-core

  4. Single-core
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Multi-core architecture refers to a computer architecture that has multiple processing units (cores) on a single integrated circuit. This allows for parallel processing and improved performance.

Multiple choice

Which of the following is NOT a common type of malware?

  1. Viruses

  2. Worms

  3. Trojan horses

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

Ransomware is not a common type of malware. It is a specific type of malware that encrypts files and demands a ransom payment to decrypt them.

Multiple choice

Which of the following is not a component of LWS?

  1. A high-energy laser

  2. A beam director

  3. A command and control system

  4. A data processing and analysis center
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

LWS does not have a data processing and analysis center. Instead, it relies on existing ground-based facilities for data processing and analysis.

Multiple choice

Which of these is NOT a common type of technology project involving physical computing?

  1. Building a simple circuit using a breadboard and components

  2. Designing a wearable device with sensors and actuators

  3. Creating a home automation system using microcontrollers

  4. Developing a virtual reality application using specialized hardware
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Developing virtual reality applications generally requires specialized hardware and software, making it less common for middle school technology projects.

Multiple choice

What is the primary function of a microprocessor in a computer system?

  1. Performing arithmetic and logical operations

  2. Storing data and instructions

  3. Managing input and output devices

  4. Connecting different components of the system
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The microprocessor is responsible for executing instructions and performing calculations, which are the core operations of a computer system.

Multiple choice

Which of the following is a typical component of an embedded system?

  1. General-purpose operating system

  2. High-level programming language

  3. Microcontroller or microprocessor

  4. Graphical user interface (GUI)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Embedded systems often use microcontrollers or microprocessors as their central processing units, which are designed for specific tasks and have limited resources.

Multiple choice

Which of the following is a common type of bus used in microprocessors?

  1. Address bus

  2. Data bus

  3. Control bus

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

Microprocessors typically use three types of buses: address bus, data bus, and control bus, to communicate with memory and other components.

Multiple choice

Which of the following is a common type of embedded system?

  1. Personal computer

  2. Smartphone

  3. Digital camera

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

Smartphones are examples of embedded systems due to their specialized functionality and limited resources.

Multiple choice

Which of the following is a common type of microprocessor architecture?

  1. RISC (Reduced Instruction Set Computer)

  2. CISC (Complex Instruction Set Computer)

  3. VLIW (Very Long Instruction Word)

  4. EPIC (Explicitly Parallel Instruction Computing)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

RISC architecture is commonly used in microprocessors due to its focus on simple instructions and efficient execution.

Multiple choice

What was the name of the first personal computer?

  1. Altair 8800

  2. Apple I

  3. IBM PC

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

The Altair 8800, released in 1975, is considered to be the first personal computer.

Multiple choice

What is the term for the replacement of human workers with machines or computer systems?

  1. Automation.

  2. Digitization.

  3. Robotization.

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

Automation refers to the use of machines or computer systems to perform tasks that were previously done by human workers.

Multiple choice

Which of the following is a common system maintenance technique?

  1. Software updates

  2. Hardware upgrades

  3. Performance tuning

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

Software updates, hardware upgrades, and performance tuning are all common system maintenance techniques used to keep the system up-to-date with changing requirements, fix defects in the system, and improve the performance and reliability of the system.

Multiple choice

What are the three main components of a robot?

  1. Sensors, actuators, and a controller

  2. A body, a brain, and a heart

  3. A power source, a motor, and a transmission

  4. A computer, a camera, and a microphone
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The three main components of a robot are sensors, actuators, and a controller. Sensors allow the robot to perceive its environment, actuators allow the robot to move and interact with its environment, and the controller coordinates the robot's actions.

Multiple choice

What is the most common type of robot controller?

  1. Microcontrollers

  2. Programmable logic controllers

  3. Personal computers

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

Microcontrollers are the most common type of robot controller. They are small, inexpensive, and powerful computers that are designed to control electronic devices.