Computer System

Question 1

What is a Computer System?

Answer 1

A computer system is a complete setup that includes both hardware and software components working together to perform tasks, process data, and produce results.

Question 2

What types of 🔧 Components of a Computer System?

Answer 2

1. Hardware
2. Software

Question 3

What is Computer Hardware?

Answer 3

Computer hardware is the physical components of a computer system, such as the CPU, RAM, hard drive, and input/output devices.

Question 4

What is Computer Software?

Answer 4

Computer software is a set of instructions or programs that tell a computer what to do.

Question 5

What is the difference between system software and application software?

Answer 5

System Software: Runs the computer (e.g., operating system).

Application Software: Helps perform user tasks (e.g., MS Word).

Question 6

Computer System Units?

Answer 6

1. CPU
2. Input Unit
3. Memory Unit
4. Output Unit

Question 7

Give examples of input devices.

Answer 7

1. Keyboard
2. Mouse
3. Scanner
4. Microphone
5. Webcam

Question 8

Give examples of output devices.

Answer 8

1. Monitor
2. Printer
3. Speakers
4. Projector

Question 9

What are storage devices?

Answer 9

Devices used to store data permanently or temporarily. Examples:

1.Hard Disk Drive (HDD)

2. Solid State Drive (SSD)
3. USB Flash Drive
4. CD/DVD

Question 10

Which unit is used to measure RAM?

Answer 10

RAM is usually measured in Gigabytes (GB) today, though earlier it was in Megabytes (MB).

Question 11

What is the difference between memory and storage?

Answer 11

Memory (RAM): Temporary, volatile, fast – used while the computer is on.

Storage (HDD/SSD): Permanent, non-volatile – retains data even when the power is off.

Question 12

What is the CPU?

Answer 12

The CPU (Central Processing Unit) is the “brain” of the computer that performs instructions and processes data.

Question 13

What are the main components of the CPU?

Answer 13

1. ALU (Arithmetic Logic Unit) – Performs arithmetic and logical operations.
2. CU (Control Unit) – Directs operations of the processor.
3. Registers – Small, fast memory locations for temporary data storage during processing.

Question 14

What does the Control Unit (CU) do?

Answer 14

The CU manages and coordinates all activities in the computer by sending control signals to other components.

Question 15

What are registers in the CPU?

Answer 15

Registers are high-speed memory locations inside the CPU used to store data, instructions, and addresses temporarily.

Question 16

What is a multi-core processor?

Answer 16

A CPU with multiple processing units (cores) that can perform multiple tasks simultaneously, improving performance.

Question 17

Characteristics of a Computer System:

Answer 17

1. Processing speed
2. Accuracy of Operations
3. Data Storage
4. Fast Logical Decisions
5. Repetitive Task Ability

Question 18

Important Features of a Computer System

Answer 18

1. Speed – Performs millions of instructions per second.
2. Accuracy – Executes tasks with high precision and minimal errors.
3. Automation – Works automatically after being programmed.
4. Diligence – Never tires or loses focus; can work continuously.
5. Versatility – Can perform a wide variety of tasks (e.g., calculations, media editing, communication).
6. Storage – Stores vast amounts of data and retrieves it quickly.
7. Multitasking – Handles multiple tasks at the same time efficiently.
8. Communication – Easily shares data over networks (e.g., internet, LAN).
9. Reliability – Provides consistent and dependable performance.
10. No IQ or Emotions – Performs only what is instructed; no decision-making on its own.