15 May
2018
15 May
'18
1:42 a.m.
CAT = Computer Assisted Typesetter. It was built by a company called
Graphic Systems (GSI). It was the original device troff was done for.
Many of the original troff limitations go to the fact it was driving this
device: there are only four fonts. These are held on film strips on a
drum. Not the most sophisticated font system, but ahead of its time. It
had only been on the market for two years when the labs got it and wrote
troff.
I believe the one we had access to (and used for the previously mentioned
versatec emulation) was at the Naval Research Laboratory.