Data Transmission

Data Transmission

1. Parallel

   • -ves
     • More complex proccessing is needed
     • Error correction is more difficult
   • +ves
     • Faster than Serial
       • Justification
         • Speed of devices
         • Volume of data
         • The sensitivity of data
   • Uses
   • Multiples of 8
     • Many bits at once

2. Serial

   • Single wire
     • 1 bit at a time
   • +ves
     • Reliable
   • -ves
     • Slow
     • USB

3. Simplex

   • Tv
   • Travel in both directions at once

4. Duplex

   • Wi-fi Connection
   • data travels in two directions
   • Phone Connections
   • Half-Duplex
     • Transferred in 2 direction
       • Walkie Talkies
       • Hard Disk