Computing Revision

Computing Revision

1. Networks

   • LAN
     • networked computers that are geographically located close to one another, can be wired or wireless and each device is called a node.
     • Why use it
       • allows communication between workers
       • allows data or information to be shared between computers
       • devices such as printers can be shared
       • the computers can be upgraded and fixed easily
       • workers can access their files on any computer connected
     • Hardware
       • Network Interface Card
       • Hub
       • Switch
       • Router

2. Decimal, Binary And Hexadecimal

   • Hex is used to make it easier on the reader
   • Unicode represents characters in multiple different lanuages