Wired and Wireless Networks. System Architecture 1.4

Wired and Wireless Networks. System Architecture 1.4

1. Computer Network - A telecommunication network allowing computers to exchange data (share files) via a data link

2. LAN (Local Area Network)

   • Covers a small geographical area
   • Quite fast (100-1000 megabits per second)
   • Cheap
   • Used in Schools, Classes, Offices etc.
   • LANs are normally owned by the user
   • The Internet is a WAN

3. WAN (Wide Area Network)

   • Covers a large geographical area
   • Quite slow (Up to 150 megabits per second)
   • Expensive
   • Used in Universities, Large Companies etc.
   • Might not own the WAN you use

4. Bottleneck - A wiring cabinet connected by one cable (causing traffic)

   • Can be fixed by using Fibre Optic

5. Ethernet Cables - Network Cable used to connect devices together

   • CAT5 & CAT6 (Category)

6. A client server network is where all client devices are connected to a central server. Permissions are given to clients and it stores users accounts and passwords