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Clarify discussion of IBM 7030.

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Nathaniel Beaver
2016-09-12 09:53:12 -05:00
parent a10778e232
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@@ -379,10 +379,11 @@ Similarly, punched cards used uppercase letters only.
Encodings with different bit patterns for uppercase and lowercase Encodings with different bit patterns for uppercase and lowercase
had been proposed as early as 1959, [#Bemer_1959]_ had been proposed as early as 1959, [#Bemer_1959]_
though they were not widely implemented. though they were not widely implemented.
For example, the IBM 7030 "Stretch" supercomputer used an 8-bit encoding For example, the IBM 7030 "Stretch" supercomputer,
that included interleaved uppercase and lowercase alphabets, first installed at Los Alamos National Laboratory in 1961,
and was used at Los Alamos as early as 1961. had an 8-bit encoding that interleaved uppercase and lowercase alphabets.
[#Stretch_supercomputer]_ [#Stretch_supercomputer]_
However, the 7030's character encoding did not catch on.
Early on, ASCII committee concluded that 6-bit encodings (64 bit patterns) Early on, ASCII committee concluded that 6-bit encodings (64 bit patterns)
were insufficient to include both control characters and special characters were insufficient to include both control characters and special characters