Scott Lurndal laid this down on his screen :
On Tue, 26 Jul 2016 23:32:32 -0700 (PDT), Uncle Monster
wrote:

On Wednesday, July 27, 2016 at 12:31:38 AM UTC-5, wrote:
On Tue, 26 Jul 2016 22:07:07 -0700 (PDT), Uncle Monster
wrote:

On Monday, July 25, 2016 at 9:15:40 PM UTC-5, wrote:
Those 100 amp mainframes used switchers. Huge ones obviously. IBM
stopped using shunt regulators, and pass regulators by the mid 60s. We
did have at least one machine (3705 communication controller) that
used a strange SCR supply that took the 208vac and made the DC
voltages directly by using PWM and a buttload of big capacitors.
They were scary noisy on the power line side tho.

The computers I played with when I was young were the Univac 1100 series
and the IBM 360/50 RAX systems back in 1965-1966 at the university.

The mod 50 used a 208 3p 60 amp plug. That was a switcher PS machine
too. I had a couple in my territory

The university was replacing the Univac with the IBM during that time and
I had a lot of fun learning about computers and programming. I remember
having boxes of punch cards as a way of carrying around a program I had
written. My country sent astronauts to the Moon and back with computers
like that. I've never lost my love of science, technology and learning
new things. ^_^

Yup, They actually assembled a special s/360 just for NASA that was a
multiprocessor M/95.
I saw a lot of Univac 1108s that the Navy used but I never messed with
them.

We think of a CPU today as something smaller than a fingernail. It would be
fun to show a kid who has never picked up an encyclopedia in book form a
CPU composed of discrete components. I haven't looked at eBay for them but
I remember seeing some IBM 360 processor boards on the site years ago. I
think the darn things were bigger than the motherboard in any of my full
sized tower PC's. I know it took a lot of those boards to makeup a CPU and
it still amazes me. ^_^



Discrete computer:

http://www.megaprocessor.com/

Cool! Would you call that Large Scale Dis-integration?