Computing Kurzgesagt

Computing Kurzgesagt

1. paper 1

   • Code
   • Code Theory

2. Theory

   • Data Representation (1)
     • Binary
   • Computer Systems (2)
   • Networks (3)
     • Communicaton types
       • parallel
         • Good
           • Fast as many wires
           • can go both ways
         • bad
           • expencive as many cables
           • skew of data occurs when each wire has a different property, in effect data travels at different rates and messes up the end message
           • only for short distance
           • likley to have cross talk
       • serial
         • good
           • cheap
           • less chance of cross talk
           • good for long distance
           • used as a way to connect peripherals
         • bad
           • slower speeds
           • two channels needed for forwards and backwards
       • Transmission types
   • Consequences
   • Representing sound, images and other data (5)