Understanding Networking and the Internet
Learning the difference between a LAN, a WAN and the internet.
Core concept
A LAN (Local Area Network) connects computers within a small area, like a school or office. A WAN (Wide Area Network) connects computers over a large area, like across cities or countries — the internet itself is the largest WAN.
How it works
Networking allows sharing of resources like printers and internet connections, and enables communication tools like email and video calls.
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Quick notes
• A network connects two or more computers to share data.
• LAN connects computers within a small area, like a school.
• WAN connects computers over a large area, like across countries.
• The internet is the largest WAN.
• Networking allows sharing printers and internet connections.