Question

Computers “A” wants to transmit 8 bits of data to computer “B” using 8 wires. To be able to detect errors, we should use:

a. 1 odd parity generator and 1 even parity checker, withoug adding any more wires.

b. 1 odd parity generator and 1 odd parity checker, without adding any more wires.

c. 1 odd parity generator and 1 even parity checker using 1 extra wire.

d. 8 odd parity generators and 8 odd parity checkers using 8 extra wires.

e. 1 odd parity generator and 1 odd parity checker using 1 extra wire.

Answer 1

a. 1 odd parity generator and 1 even parity checker, withoug adding any more wires.

Transmitting data or code word contains information bits and parity check bits for error free information at receiver.So Parity check bit generator is used to detect or check errors at receiver for error free information this process is called as encoding and decoding process.

To generate even parity code words of length 8 with an odd parity generator at computer A and Check even parity code words of length 8 with odd parity checker at computer B without using any external wires

To generate oddparity code words of length 8 with an even parity generator at computer A and Check odd parity code words of length 8 with even parity checker at computer B without using any external wires