10 Oct
2019
10 Oct
'19
8:21 p.m.
On Thu, 10 Oct 2019, Lars Brinkhoff wrote:
Warner Losh wrote:
https://www.tuhs.org/Archive/Distributions/Research/McIlroy_v0/03-scope.pdf
Jump down to page 20 and more.
Also see some of the PDP-7 assembler code in same directory
about "G-2" and "graphic-2" (keyboard and display) etc.
I'm unsure the thing you labeled as
DISPLAY-2 is the DISPLAY-2 or the
standard Option 340 display. I know people on this list said it was a
display-2 (maybe my early slides did as well). Based on pictures in
the PDP-7 manuals, I think it was the 340...
The photo does look much like a 340 CRT. Is there anything known about
how the GRAPHICS-2 (not DISPLAY-2, right?) hardware was built? Is it
possible a 340 CRT was repurposed for GRAPHICS-2?