4.1•Binary Codes

4.1.1 Binary Digits:

•Between machines information is exchanged by binary digits (bits).•Each bit is two valued—either 0 or 1.•Two common states are use today that are given below.•ASCII•EBCDIC

4.1.1 Binary Digits:

• ASCII– Stands for American Standard code for

Information Interchange.– Employ a sequence of seven bits.– Each bit may be 0 or 1.– It contain 27, or 128 unique patterns.

4.1.1 Binary Digits:

• EBCDIC– Stands for Extended Binary Coded Decimal

interchange Code– Employs a sequence of eight bits.– Each bit may be 0 or 1.– EBCDIC contains 28, or 256 unique patterns.