First computer with real-time clock?

From: Lyle Bickley <>
Date: Mon Aug 2 22:07:49 2004

BTW: The Sage system (tube based) predates the 709x systems (discrete
component/transistor based) and was in use from 1956-63.


On Monday 02 August 2004 19:54, Lyle Bickley wrote:
> When I worked at Lockheed (as an IBM'er) in the early '60s we were tracking
> military satellites with 256 channels of data. We had a real time clock
> interfaced to an IBM 7094 to support timestamped tracking of the flight
> data. As I recollect, the satellite(s) themselves had a real time clock.
> Since this was a classified project I don't have any documentation to back
> up my recollections.
> The SAGE system from that era also used real time clocks.
> I suspect that the tracking computers for the Apollo missions had a similar
> setup to ours at Lockheed. I do have some of the listings of the Apollo
> onboard computer software - and I'd be very surprised not to find a real
> time clock being referenced.
> Lyle

Lyle Bickley
Bickley Consulting West Inc.
"Black holes are where God is dividing by zero"
Received on Mon Aug 02 2004 - 22:07:49 BST

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