Network

Network

1. Hardware

   • Ethernet
     • Purpose
       • So that you can connect your device to a router, switch or another computer. you can also get the higher data transfere speed at 100 mbps
   • Router
     • Purpose
       • So that all of the devices can connect to a central point in a local area network. Most routers will have WiFi and Ethernet connections.
   • Switch
     • Purpose
       • So that all of the devices can connect to a central point on a local area network.
   • Network interface card
     • Purpose
       • Any device which connects to a LAN or a WAN must have a network interface card! The card will connect your device to a switch, router or a wireless access point.

2. Advantages of using a network

   • Sharing devices such as printers saves money.
   • Files can easily be shared between users.
   • Site (software) licences are likely to be cheaper than buying several standalone licences.
   • Security is good - users cannot see other users' files unlike on stand-alone machines.

3. Disadvantages of a Network

   • Purchasing the network cabling and file servers can be expensive.
   • Managing a large network is complicated, requires training and a network manager usually needs to be employed.
   • Viruses can spread to other computers throughout a computer network.
   • There is a danger of hacking, particularly with wide area networks. Security procedures are needed to prevent such abuse, eg a firewall.

4. Connection Types