[Simh] Simh Digest, Vol 113, Issue 24

[dave porter]

> What does DUP stand for?

Mostly it stands for the fact that all the good 2-character
communication device names were already taken.

In particular we already had a DU11 and a DP11 ...

I think the DUP11 might have been a replacement
for the DP11 (not in any 'compatible' sense), but since
my 1976 Peripherals Handbook has gone missing, I
can't be too sure.

dave