15 Aug
2020
15 Aug
'20
11:09 p.m.
After going down that rabbit hole (thanks!)...
I love the motor/generator pair(s) they used to power the thing. I
immediately thought of a motor-generator set my father had, to turn 60hz
into 400hz, so he could test products they built at a defense contractor
(and later, NASA contractor).
Sure enough, the Cray used 400hz AC input power.
On 8/15/2020 11:18 AM, Tony Finch wrote:
moving to COFF ...
Thomas Paulsen <thomas.paulsen(a)firemail.de> wrote:
I
found the Cray 1M site planning reference manual very interesting -
here's a summary with links to the actual documents
http://www.howtospotapsychopath.com/2012/06/15/they-called-it-big-iron-for-…
Tony.
I'm
sure everyone here knows this, but the Cray 1 (I think, the one
that had what
looked like a circular bench seat around the bottom) was
designed like that because the clock was at the center and the clock
signal went to all the boards and was right because all the clock lines
to the boards were the same length.<
you mean that?
https://upload.wikimedia.org/wikipedia/commons/f/f7/Cray-1-deutsches-museum… 