Delete comment from: Ken Shirriff's blog
| The models 91 and 195 used a display based on
| the IBM 2250 Graphics Display Unit. This was a
| vector display, drawing characters from line
| segments instead of pixels.
The integrated operator console on the 360/85 was
also a vector display, and was also based on the
IBM 2250, except I don't remember it having a light
pen. The System/370 Model 165 was essentially the
same machine as the 360/85, except that it used
"old" (used, returned) 360/50 core memory modules,
which caused many legal and contractual problems,
because the 370/165 was being sold as (all) "new"
and many organizations and state and federal tax
laws treated (genuine) new equipment differently.
I was a hands-on user of both the IBM 2250 display
and the 370/165 operator console.
The operator console on the 360/195 (and 370/195)
was called the "IBM 3060 Model 1 System Console."
It was also based on the IBM 2250 Graphics Display
Unit, but was, IMHO, much better (more lines could
be displayed). The IBM 3066 console used with the
various 370/165 and 370/168 models, along with the
earlier, nearly-identical twin, the 360/85 System
Control Panel, was smaller (about half as tall and
showing about half as many lines of text) than the
360/91 (and 360/95) and 360/195 (and 370/195) CRT
display consoles; the vector graphic characters
were clunkier, larger, and seemed to be drawn in
a sloppy manner (line segment ends did not always
match up nicely), and very much less clear than
the 3060 (and 2250) CRT characters. One would have
thought they would be as well rendered (or even
better, for supposedly more modern technology),
but the 3066 definitely had a low-budget look.
That said, the 3066 was FAST (which goes a long
way towards explaining the difference I suspect).
Apr 8, 2019, 2:45:58 PM
Posted to Iconic consoles of the IBM System/360 mainframes, 55 years old