computing revision

computing revision

1. hardware

   • router
     • router preform the traffic directing functions on the internet
     • wifi extender
       • it can improve wireless signal strength
   • nic
     • A network interface card NIC in a circuit board.
       • NIC stands for Network Interface Card
         • provides networking capabilities for a computer
   • switch
     • to turn the router on
   • server
     • a server is a computer program that provides the ability to do stuff

2. advantages of wifi

   • it gives u more freedom
   • no cables
   • can access with in range

3. disadvantages of wifi

   • slower
   • easier to hack

4. NETWORKS

   • WPAN
     • bluetooth
       • Wireless headsets, cellphones and even gaming consoles can all use Bluetooth in one way or another.
         • While Bluetooth has certain limitations, such as a shorter range and lower bandwidth then Wi-Fi
     • advantages
       • short distance area wireless network for interconnecting devices centered around an individual person's workspace.
   • WAN
     • If your company has branches in several locations, a wide area network is a viable option to boost productivity and increase internal communications.

5. optical

   • DVD
     • another way to transfere data through a disc
   • solid state
     • hard drive disc