On Monday, 11 March 2002 at 23:40:27 +0000, David Laight wrote:
> On Sat, Mar 09, 2002 at 06:14:20PM -0500, der Mouse wrote:
>>> [...], but later they moved to 9 bit ASCII.
>>
>> ...isn't ASCII 7 bit by definition?  Or is "9 bit ASCII" an
>> abbreviation for "ASCII in the low 7 bits of a 9-bit field"?  (And in
>> that case, I'm curious: what did the other 3/4 of the possible values
>> mean, do you happen to know?)
>
> Probably all zero.
>
> What about 6 bit ASCII?

The PDP-8 used that.  Upper case and symbols only.  I don't recall how
they handled CR and LF, since they would overlay M and J.

Greg
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