11.a. Why
were ASCII and EBCDIC Created?
Computer manufacturers
originally devised their own coding schemes:
Bit Sequence |
Manufacturer A |
Manufacturer B |
Manufacturer C |
00000000 |
1 |
A |
NULL |
00000001 |
2 |
B |
Esc |
00000010 |
3 |
Z |
BS |
∙∙∙∙ |
∙∙∙∙ |
∙∙∙∙ |
∙∙∙∙ |
11111110 |
y |
EOF |
8 |
11111111 |
z |
NULL |
9 |
Because there were
differences, a committee (ASCII) was formed to develop a common coding scheme
so that computers could readily exchange data.