30/01/2026
Computer Hardware refers to the physical components of a computer system — the parts you can see and touch.
Here’s a clear breakdown 👇
🖥️ Main Types of Computer Hardware
1. Input Devices
Used to enter data or instructions into the computer.
Examples:
Keyboard
Mouse
Scanner
Microphone
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2. Output Devices
Used to display or present the processed data.
Examples:
Monitor
Printer
Speakers
Projector
3. Processing Device
The CPU (Central Processing Unit) is the brain of the computer.
It has three main parts:
ALU (Arithmetic Logic Unit): Performs calculations and logic operations.
CU (Control Unit): Controls operations and instructions.
Registers: High-speed memory inside the CPU.
4. Storage Devices
Used to save data permanently or temporarily.
Examples:
Primary Storage: RAM, ROM
Secondary Storage: Hard Disk (HDD), SSD, Pen Drive, CD/DVD
5. Memory
RAM (Random Access Memory): Temporary storage, data lost when power off.
ROM (Read Only Memory): Permanent storage, contains startup instructions.
6. Motherboard
The main circuit board that connects all components of the computer (CPU, memory, input/output devices, etc.).
7. Power Supply Unit (PSU)
Converts electricity from the wall outlet into usable power for the computer.
8. Networking Components
Used for connecting computers and devices.
Examples: Network card, Router, Modem, LAN cable, Wi-Fi adapter.
