ASCII : American Standard Code for Information Interchange

an 8 bit (oclet) byte is assigned to each character code.
The last 7 bits represent 128 ASCII codes.


A single keyboard character that you type, such as the letter A or the letter T takes up one byte of storage.

The octets (bytes) are packed into memory words



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Microsoft Introduced ANSI standard using 0- 255 space in windows. It is an extended encoding scheme including special characters as given below. ANSI supported many European characters.