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18 bit teletype note. |
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The Teletype packs three characters in each 18-bit word; each character a 5-bit [[Baudot code]] and an upper-case bit.<ref name="pdp7" />
The [[DEC SIXBIT]] format packs three characters in each 18-bit word,<ref name="pdp7">{{Cite manual|title=PDP-7 Symbolic Assembler Programming Manual|last=|first=|publisher=[[Digital Equipment Corporation]]|year=1965|isbn=|___location=Maynard, Massachusetts|pages=6, 38–39|url=http://bitsavers.trailing-edge.com/pdf/dec/pdp7/PDP-7_AsmMan.pdf|archive-url=https://web.archive.org/web/20170523224514/http://bitsavers.trailing-edge.com/pdf/dec/pdp7/PDP-7_AsmMan.pdf|archive-date=May 23, 2017|dead-url=no|access-date=June 18, 2015}}</ref> each 6-bit character obtained by stripping the high bits from the 7-bit [[ASCII]] code, which folds lowercase to uppercase letters.
==References==
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