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.