Revision

Revision

1. Networks

   • Star Network
     • Very secure because if one breaks the rest work however it is very exspensive
     • Goes round in a star with a hub in the middle
   • Bus Network
     • Cheap but if one breaks the network goes down
     • Goes in a line like a bus
   • Ring network
     • Goes round like a ring
     • Is fast at transfering data but if one cable breaks the entire sytem goes down

2. Input/ Output

   • An output is a computer communicating to you
     • Screen
     • Speaker
     • Printer
   • An input device is your way of communticating to a computer
     • Keyboard
     • Mouse
     • Microphone

3. Hardware

   • Physical parts of a computer system
     • Motherboard
     • RAM
     • CPU

4. Binary

   • They are like on and off switches 0= off and 1= on. They make up everything
     • 1 2 4 8 16 32 64 128 This is how to convert binary