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From: Jeffrey Carter <jeffrey.carter@boeing.com>
Subject: 6-bit characters (was: Re: Streams in Ada)
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I've never used the PDP-10, but ...

I learned to program in Fortran 66 (IV) on a CDC 6400 with 60-bit words.
It used a 6-bit character set, so 10H fit into one word. The next
machine I used was a DEC 10 with TOPS-10. It had 36-bit words, but I
never encountered 6-bit characters on it; 7-bit ASCII IIRC.

Jeffrey Carter