[HECnet] DU11 vs. DUV11

John Wilson wilson at dbit.com
Sun Jan 6 12:28:04 PST 2013


From: Johnny Billquist <bqt at softjar.se>

You must be talking of the PDT-11/150 then. The /110 and /130 sat inside 
a VT100 shell. Extremely similar to a VT103 (I actually never figured 
out what the difference between a VT103 and a PDT-11/130 is.)

I may be grossly misinformed, but my understanding is that although the
/110 and /130 both live inside a VT100, they're *not* like VT103s, and
have no Q-bus but use a custom CPU board just like the /150 (I doubt it's
the exact same board, but a similar design).

I could have sworn the 110/130 manual on bitsavers (which is misfiled
away from the 150 manual -- I forget where) said so but on a quick skim I
can't find it.   The I/O hardware has enough programming differences that
it can't be regular Q-bus stuff, although I suppose they could have made
a whole set of PDT-specific boards.

John Wilson
D Bit



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