8 Nov
2021
8 Nov
'21
4:39 a.m.
On 11/7/21 10:11 AM, Paul Koning wrote:
I remember the same from about 40 years ago. The RSTS/E development lab had a large
11/70 ("the ARK" because it had two of almost every peripheral RSTS supported).
Right next to it was a pretty large VAX-11/780. It was a whole lot noisier than even that
very large 11/70.
Yeah, I'd believe it.
Anyway, Magica was up and running for about 6h
yesterday. A real 11/70 might outnoise an 11/780. :-D
We have a PDP-11/70 and a VAX-11/780 in adjacent rows at the museum. The 11/780 is
considerably louder. I will measure this for quantitative numbers the next time I'm
over there. In fact, there was an internal joke that the cooling
blowers in the 780 were designed to push the machine away from walls, to ensure field
service access clearance to the machine. :-)
soda -> keyboard
--
Dave McGuire, AK4HZ
New Kensington, PA