Computer hardware refers to the physical components of a computer system that you can touch and see. These include all the devices and parts that make up a computer, and they work together to allow the computer to function. Some key examples of computer hardware are:

• Central Processing Unit (CPU)

• Motherboard

• Memory (RAM)

• Storage devices

• Power Supply Unit (PSU)

• Graphics Processing Unit (GPU)

• Output Devices

• Peripheral devices

All of these components work together to allow a computer to run software applications and perform tasks.

Computer hardware consists of physical components that make up a computer system. Here are the main types:

1. Input Devices (Used to enter data into the computer)

• Keyboard

• Mouse

• Scanner

• Microphone

• Joystick/Game Controller

2. Processing Unit (The brain of the computer)

• Central Processing Unit (CPU)

• Graphics Processing Unit (GPU)

3. Storage Devices (Used to store data)

• Hard Disk Drive (HDD)

• Solid-State Drive (SSD)

• USB Flash Drive

• Memory Card (SD Card)

4. Memory (RAM & ROM) (Handles temporary and permanent storage)

• Random Access Memory (RAM)

• Read-Only Memory (ROM)

5. Output Devices (Displays or outputs information)

• Monitor (Screen/Display)

• Printer

• Speakers

• Projector

6. Motherboard (Main circuit board connecting all components)

Houses the CPU, RAM, storage, and expansion slots.

Provides ports for peripherals like USB, HDMI, and audio.

7. Power Supply Unit (PSU)

Converts electricity from the wall outlet into usable power for the computer.

8. Cooling System (Prevents overheating)

• Fans

• Heat Sinks

• Liquid Cooling Systems

9. Expansion Cards (Enhance computer capabilities)

• Graphics Card (GPU)

• Sound Card

• Network Interface Card (NIC)

10. Networking Devices (For internet and communication)

• Router

• Modem

• Ethernet Card (LAN Card)

CCTV camera installation refers to the process of setting up Closed-Circuit Television (CCTV) cameras for security surveillance in homes, offices, public places, or businesses. The installation process involves:

Steps for CCTV Camera Installation:

2. Choosing the Right CCTV System

1.Planning & Site Survey

4.Running Cables & Power Supply

3. Mounting the Cameras

5. Setting Up the DVR/NVR

6. Configuring & Testing

7.Maintaining & Monitoring