Computer system comprises of major units

A computer system comprises several major units, including:

1. Central Processing Unit (CPU): Often referred to as the brain of the computer, the CPU performs calculations and executes instructions.

2. Memory: This includes both RAM (Random Access Memory) for temporary storage of data and instructions being used, and ROM (Read-Only Memory) for permanent storage of firmware.

3. Storage: Hard drives (HDDs) or solid-state drives (SSDs) are used for long-term data storage, holding operating systems, applications, and files.

4. Input Devices: These are the peripherals used to input data into the computer, such as keyboards, mice, scanners, and microphones.

5. Output Devices: Devices that output data from the computer, including monitors, printers, and speakers.

6. Motherboard: The main circuit board that connects all components of the computer, allowing them to communicate with each other.

7. Power Supply Unit (PSU): Converts electrical power from an outlet into usable power for the internal components of the computer.

8. Network Interface Card (NIC): Allows the computer to connect to networks and communicate with other devices.

Each of these components plays a crucial role in the overall functionality of a computer system.