Network

Network

1. Advantages

   • faster
   • communicate with others around the world
   • access past files
   • log onto any computer with username and password
   • can print, use internet, email and have the same software
   • IP address
     • An IP address is a unique value assigned to every computer on a network,used to identify it
       • Messages on a network have an IP address attached, which is how a computer knows whether or not to keep the message

2. disadvantages

   • cost of network
   • viruses show up on every computer
   • if something goes wrong all computers are affected
   • requires technical expertise
   • difficult to set up
   • expensive

3. Types of networks

   • Lan: a local area network and a network contained in a single geographical location or organisation
   • Wan:a wide area network-network that spans a large geographical area, or multiple organisations. often consists of multiple Lans networked together

4. Topologies

   • bus topology
     • advantages
       • cheap to install
   • disadvantages
     • high chance of catastrophic failure
     • lots of collision
     • slowed down when more computers are added

5. Ring topology

   • advantages
     • cheap to install
       • no collision(fast)
   • disadvantages
     • high chance of catastrophic failure
       • difficult to expand

6. Star topology

   • advantages
     • low chances of failure
       • no collisions(fast)
   • disadvantagtes
     • expensive
       • depends on a switch