1.4:Wireless and Wired Network

1.4:Wireless and Wired Network

1. Types Of Network

   • LAN
   • WAN
   • Client-Server
   • Peer-To-Peer

2. LAN

   • local area network
     • Home network
       • School network
         • Network in a shop
   • Computers are connected together over a small geographical area such as a single building or a single site
   • LAN has its own infrastructure of cabling and network hardware dues to distance and practilcalities

3. WAN

   • Computers are connected over a large geographical are.
   • This could be several buildings/sites ,town wide, county wide or even country wide
   • The biggest WAN would be a global collection of network (known as the internet
   • WAN uses external hardware and external infrastructure e.g. use of satellite, phone lines or the internet

4. Peer-Peer

   • All computers have equal status
   • Each device can act as a client and a server
   • All devices can request and provide network services
   • No additional hardware/software needed to set up this type of network
   • Om Peer-Peer all files are stored on their own
     • users have to log in the same computer every time

5. All files can be stored centrally on Client server

   • Workers can access files from any computer
   • All computers can update central databases

6. Hardware Components

   • Wireless Access Points
     • Router
   • Switch
     • Network interface Card (NIC)
   • Transmission Media

7. Wireless Access Point (WAP)

   • Allows for wireless devices to connect to a network