Coded Character Sets: History and Development
The standards process. Terms and concepts. Early codes. The duals of BCDIC. The size of BCDIC. The size and structure of PTTC. The structure of EBCDIC. The sequence of EBCDIC. The duals of EBCDIC. The graphic subsets of EBCDIC. The card code of EBCDIC. The new PTTC. The size and structure of ASCII. The sequence of ASCII. Which bit first?. Decimal ASCII. Which Hollerith?. Katakana and the Hollerith card code. What is a CPU code?. ASCII in 8-bit interchange environment. The alphabetic extender problem. Graphic subsets for the government. Which ASCII? Logical or, logical not. A comparison of contiguous, noncontiguous, and interleaved alphabets. Code extension examples. The 96-column card code. Glossary. Index.
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64-character 7-Bit Code alphabetics applications ASCII aspect assigned associated binary bit patterns Block byte called capital letters card code changed Chapter characteristic code positions code table collating sequence columns common complex considered contain contiguous control characters cost criteria Criterion data processing decided Decimal ASCII decision described developed digit discussed duals EBCDIC equipment example extenders Figure final four functions graphic characters graphics hole patterns Hollerith Card Code implemented Katakana Keypunch letters Line logic lower magnetic tape meaning needed noted numerics operators possible printer printing problem programs proposed PTTC PTTC/EBCD punched card reason recorded relationship represent respectively result Right shift shown in Fig Space Space character specials standards committee structure subset symbols Top and Left track translation transmission typewriter upper Version zero zone punches ܐ ܐ ܐ
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International Journal of Man-machine Studies, Volume 16
No preview available - 1982