The old HP calculators had masked ROM for code and a little RAM for temps.
I recall.
I do remember stories about code simulation because of the ROM expense.
Bob K.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steven Creswick
Sent: Saturday, October 05, 2013 9:07 PM
To: [log in to unmask]
Subject: Re: [TN] NTC for today
Did each station monitor a different set/piece of telemetry?
My HP calculators likely had as much processing ability as the LEM computer.
Weren't they still using core memory as well?
Steve
From: Inge Hernefjord [mailto:[log in to unmask]]
Sent: Saturday, October 05, 2013 5:13 PM
To: TechNet E-Mail Forum; Steven Creswick
Subject: Re: [TN] NTC for today
I'm afraid it's not a space plane but just a plan.
Actually, there is something I always wonder about. Go back to Neil Amstrong
and that time...Apollo, for instance. The computers at that time were
simple, compared to today's machines. I know, because I passed a glass box
every day before I entered the clean rooms. In that box was Apollo's main
computer, which we built. Lot's of transistors, most TO-18 and TO-5. Specked
with 2N1893, 2121, 2902, which were very popular. Back to the path.....as I
said, very simple stuff. The main functions were 'small push/pull rockets
and main rockets, as long as the service module and the astronaut capsule
were together. And communication radios. And sensors of various nature...but
in alles rather uncomplicated electronics. My question: The central station
in Houston was a large room with lots and lots of work stations. A hundred
persons "worked" there, all with their noses close to the many large
computer displays.Why was it necessary with such many work stations?
Inge
On 5 October 2013 20:13, Steven Creswick <[log in to unmask]> wrote:
Hey,
I read somewhere that Sweden is making a spaceplane. How about a ride on
that, and play the Blue Danube?!!!
Have a good time cruising!
steve
From: Inge Hernefjord [mailto:[log in to unmask]]
Sent: Saturday, October 05, 2013 1:17 PM
To: TechNet E-Mail Forum; Steven Creswick
Subject: Re: [TN] NTC for today
Thank you, buddy,
take care ya'self.
Inge
On 5 October 2013 02:43, Steven Creswick <[log in to unmask]> wrote:
It's probably already tomorrow there, but happy belated birthday Inge!
Steve
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ed Popielarski
Sent: Friday, October 04, 2013 3:32 PM
To: [log in to unmask]
Subject: [TN] NTC for today
It's Ingemar Hernefjord's birthday today!
Happy Birthday, Inge!
Ed Popielarski
Engineering Manager
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