Thread: RNAV vs IFR GPS
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  #19  
Old February 28th 04, 04:21 AM
John R. Copeland
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"Teacherjh" wrote in message =
...

Naw, they took four-course low-frequency range stations and ran them =

through an
IBM .2 mainframe to derieve RNAV tracks and bearings.

=20
That never worked because they used the Pentium processor.
=20
2+2=3D3.99992423 for small values of 2
=20
Jose


Those were the days of 650s, and later 709s.
Vacuum triodes, man... Lots of 'em! And magnetic drums, too.
If I remember right, the 7090/7094s were the first solid-state IBM =
mainframes.
(There's gotta be some old IBMer here with reliable info about that.)

Our 650 was the envy of everyone in the region.
It had 64 *words* of high-speed magnetic-core scratchpad memory!
---JRC---