What is Computer Networking?

Computer networking is what allows computers to talk to each other and to the internet.

What is a Computer Network?

A computer network is a group of connected devices that share data and resources. The internet is the largest network of all.

Why Networks Matter

• Share files and printers.
• Communicate by email and chat.
• Access the internet.
• Use shared applications and storage.

Types of Networks

• LAN: Local Area Network, e.g. one office.
• WAN: Wide Area Network, e.g. across cities.
• MAN: Metropolitan Area Network, e.g. a city.
• PAN: Personal Area Network, e.g. Bluetooth.

Key Networking Concepts

• IP addresses identify devices.
• Routers direct traffic.
• Protocols like TCP/IP define rules.
• Switches connect devices in a LAN.

Why Learn Networking?

Networking is the foundation of IT support, cybersecurity and cloud computing careers.