FW: DecTape & LincTape.
O. Sharp
ohh at drizzle.com
Mon Oct 4 22:50:48 CDT 2004
Paul Koning observes:
> Are the DECtape marks 6 bits even on the PDP-8? That would be
> strange, it would mean there would be two mark words per 3 data words.
Strange but true. I got the info from a DEC _Small Computer Handbook_ for
1967, and confirmed it in a later 8/I edition because it didn't make
sense to me either. :) It does show kind of an odd overlap, but
evidently they liked it anyway.
What machine did DEC first use DECtape (not LINCtape) for? If it was
something with an 18-bit word length maybe it would make sense, but I
remember reading somewhere that it was first used on the PDP-5...
-O.-
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