Question

Show the bits that represent the letters ‘1HpQ’ in 8-bit ASCII, using even parity.

Answer 1

1 -> 49 -> 110001
    number of 1's in above number is 3. we should make this even, add extra 1 to make this even parity.
    1 -> 1100011
H -> 72 -> 1001000
    number of 1's in above number is 2. This is already even. so, add extra 0 to make this even parity.
    72 -> 10010000
p -> 112 -> 1110000
    number of 1's in above number is 3. we should make this even, add extra 1 to make this even parity.
    112 -> 11100001
Q -> 81 -> 1010001
    number of 1's in above number is 3. we should make this even, add extra 1 to make this even parity.
    81 -> 10100011
1HpQ in binary even parity is 1100011 10010000 11100001 10100011
in hexadecimal it is C3 90 E1 A3