Look up ASCII chart 64 https://en.wikipedia.org/wiki/The committee decided it was important to support uppercase 64-character alphabets, and chose to pattern ASCII so it could be reduced easily to a usable 64-character set of graphic codes,[3]:228, 237 §14 as was done in the DEC SIXBIT code (1963).
Lowercase letters were therefore not interleaved with Probably the most influential single device on the interpretation of these characters was the Teletype Model 33 ASR, which was a printing terminal with an available paper tape reader/punch option.
the Teletype Model 33 machine assignments for codes 17 (Control-Q, DC1, also known as XON),
Look up ASCII chart 64 https://en.wikipedia.org/wiki/The committee decided it was important to support uppercase 64-character alphabets, and chose to pattern ASCII so it could be reduced easily to a usable 64-character set of graphic codes,[3]:228, 237 §14 as was done in the DEC SIXBIT code (1963).
Lowercase letters were therefore not interleaved with Probably the most influential single device on the interpretation of these characters was the Teletype Model 33 ASR, which was a printing terminal with an available paper tape reader/punch option.
the Teletype Model 33 machine assignments for codes 17 (Control-Q, DC1, also known as XON),
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