1⊕ 0 = 1
1⊕ 1 ⊕ 0 =1
1 ⊕ 1 ⊕ 1 = 1
1 ⊕ 1 = 0
0
1
1 or 0
is a subset of 8-bit EBCDIC
is used only in Western Countries
Both (a) and (b)
has 128 character, including 32 control characters
1101.011
11101.011
110.1
10010.1
11 9 23 31
22 14 7 16
11 9 7 16
11 14 23 16