networks

networks

1. disavantages

   • Expensive – extra hardware and wiring needed More room for error – if something goes wrong it can affect every computer Difficult – it requires a technical expertise Malware – viruses and other malicious software can spread through the network

2. advantages

   • Consistent User Experience - You can log on to any computer in the school using the same username and password Your files are available on every computer you use, even if you created them on a different computer You can print, use the Internet, email and use the same software on any computer

3. types of networks

   • WAN
     • Wide area networks
   • LAN
     • Local area networks

4. networks topologies

5. ip address

   • Globally, there are now more devices on the Internet than the 4’228’250’625 devices it’s possible to assign a unique address to We get round this by assigning an “external” IP address to each house or business, then “internal” IP addresses to the computers in that house or business Only the external IP addresses need to be unique, the internal computers are not directly accessible
   • The Internet is a world-wide network Devices on the Internet need IP Addresses, just like any other network