Revision for Error Checking
AS computing Error checking
However this inst very good because:
- you have to 3 times a much data.
- if all the bits get muddled up when moving through the network then it might all be wrong.
These work by sending data and if it is an odd amount of ones then it will be sent even and if their an even number of ones then a zero will be added to the beginning.
This means that it can detected errors and then resend the data to the computer again.