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The X3.2 subcommittee designed ASCII based on the earlier teleprinter encoding systems.Like other character encodings, ASCII specifies a correspondence between digital bit patterns and character symbols (i.e. This allows digital devices to communicate with each other and to process, store, and communicate character-oriented information such as written language.
The code itself was patterned so that most control codes were together and all graphic codes were together, for ease of identification.abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication.ASCII codes represent text in computers, telecommunications equipment, and other devices.Lowercase letters were therefore not interleaved with uppercase.To keep options available for lowercase letters and other graphics, the special and numeric codes were arranged before the letters, and the letter A was placed in position 41 The digits 0–9 are prefixed with 011, but the remaining 4 bits correspond to their respective values in binary, making conversion with binary-coded decimal straightforward.
In addition, the original ASCII specification included 33 non-printing control codes which originated with Teletype machines; most of these are now obsolete.