Connecting the Parts of a Desktop Computer

Introduction

Setting up a desktop computer involves connecting various cables and wires correctly. This chapter will guide you through the step-by-step process of connecting the monitor, CPU, keyboard, mouse, and other peripherals.

1. Connecting the Monitor to Power and CPU

Step 1: Monitor Power Connection

Required Cable: Power cord (usually comes with the monitor).
Steps:
1. Plug one end of the power cord into the monitor’s power port (usually at the back).
2. Plug the other end into a power outlet or surge protector.

Step 2: Connecting Monitor to CPU (Video Signal)

Monitors connect to the CPU using one of these cables:

Cable Type	Usage	Connection Steps
HDMI	Best for high-quality video & audio	Plug one end into the monitor’s HDMI port and the other into the CPU’s HDMI port (usually on the back).
VGA	Older monitors (no audio)	Connect the blue VGA cable from the monitor to the CPU’s VGA port (also blue). Tighten the screws on the sides.
DisplayPort (DP)	High-resolution displays	Similar to HDMI—plug into DisplayPort on both monitor and CPU.

⚠ Note: If using VGA, you may need separate speakers for sound.

2. Connecting the CPU to Power

Required Cable: Power supply cord (attached to the CPU).
Steps:
1. Plug the power cable into the CPU’s power input (usually at the back).
2. Connect the other end to a power outlet or surge protector.
3. Turn on the power switch (if present on the CPU).

3. Connecting Keyboard & Mouse

Most keyboards and mice use USB (some older ones use PS/2).

Connection Type	Steps
USB Keyboard/Mouse	Plug the USB cable into any USB port on the CPU (front or back).
PS/2 (Older)	Green = Mouse, Purple = Keyboard (must be plugged into the correct port).
Wireless (Bluetooth/USB Dongle)	Insert the USB receiver into a USB port. Turn on the mouse/keyboard.