Computer Knowledge

Computer Fundamentals and System Concepts

2,421 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 of the following is an example of a multimodal interaction system that is used in everyday life?

  1. A smartphone that allows users to interact with it using their fingers, voice, and gestures.

  2. A smart TV that allows users to control it using their voice and gestures.

  3. A video game console that allows users to control it using a controller and their body movements.

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

All of the options are examples of multimodal interaction systems that are used in everyday life, as they allow users to interact with them using multiple modalities.

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 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

Which of the following is NOT a key component of an IoT system?

  1. Sensors

  2. Actuators

  3. Controllers

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

User interfaces are not a key component of an IoT system. IoT systems typically consist of sensors, actuators, controllers, and communication networks.

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 purpose of a trigger in a database?

  1. To store data

  2. To process data

  3. To retrieve data

  4. To update data
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A trigger is a stored procedure that is automatically executed when a specific event occurs in a database.

Multiple choice

What is the purpose of a transaction in a database?

  1. To store data

  2. To process data

  3. To retrieve data

  4. To update data
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A transaction is a set of operations that are executed as a single unit. Transactions are used to ensure that data is updated consistently.

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.