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The F14 CADC, from F-14A Central Air Data Computer, designed by Steve Geller and Ray Holt of Garrett AiResearch Corp. and completed in June 1970, was the world's first multiple-chip microprocessor. The MOS-LSI chipset was developed for the US Navy's F-14 Tomcat fighter jet.
***The Intel 4004, released on 15 November 1971, was the first single-chip microprocessor. However, the 4004 was a simple 4-bit CPU, without pipelining and other 'luxurious' facilities, and hence was much less capable than the CADC.***
This site describes the design work for a MOS-LSI microprocessor chip set designed starting June 1968 and completed by June 1970. This highly integrated computer chip set was designed for the US Navy F14A "TomCat" fighter jet by Mr. Steve Geller and Mr. Ray Holt (Ray's Biography) while working for Garrett AiResearch Corp under contract from Grumman Aircraft, the prime contractor for the US Navy. The MOS-LSI chips were manufactured by American Microsystems, Inc of Santa Clara, California.
The MOS-LSI chip set was part of the Central Air Data Computer (CADC) which had the function of controlling the moving surfaces of the aircraft and the displaying of pilot information. The CADC received input from five sources, 1) static pressure sensor, dynamic pressure sensor, analog pilot information, temperature probe, and digital switch pilot input. The output of the CADC controlled the moving surfaces of the aircraft. These were the wings, maneuver flaps, and the glove vane controls. The CADC also controlled four cockpit displays for, Mach Speed, Altitude, Air Speed, and Vertical Speed. The CADC was a redundant system with real-time self-testing built-in. Any single failure from one system would switch over to the other. Two state-of-the-art quartz sensors, a 20-bit high precision analog-to-digital converter, a 20-bit high precision digital-to-analog converter, the MOS-LSI chip set, and a very efficient power unit made up the complete CADC. A team of over 25 managers, engineers, programmers, and technicians from AiResearch and American Microsystems labored for three years to accomplish a design feat never before attempted, a complete state-of-the-art, highly integrated, digital air data computer. Previous designs were based around mechanical technology, consisting of precision gears and cams.
In 1971, Mr. Ray Holt wrote a design paper on the MOS-LSI chip set design which was approved for publication by Computer Design magazine. However, because of national security reasons the U.S. Navy would not approve this paper for publication. Mr. Holt attempted again in 1985 to have the paper cleared and the answer again was no. Finally, in April 1997, he started the process again and this time was able to receive clearance for publication as of April 21, 1998.
I disconnected the unit and, out of curiosity, I removed the rear access cover. To my amazement, there were some half-dozen large hybrid integrated circuit chips inside. The largest chip had over 500 hair-thin leads attached and was approximately the size of a Zippo lighter. The paper inspection stamp on the chip was dated 1975.
In 1975 the most advanced processor speeds, on the most classified projects were equivalent to a IBM 8088 which ran at 4 million cycles per seconds. This unit had a processor speed of 1 billion cycles per second. It wasn’t until more than a dozen years had passed before I saw comparable technology with integrated circuit chips. Then it was at a Top Secret avionics development project at ITT.
Originally posted by slank
Interesting and insightful historical info, beyondSciFi.
Does make one wonder what the government might have now, of which the public is unaware.
Probably not the UFO fantasy stuff, but they might have some pretty amazing stuff. Estimate 10 years ahead on the technology curve.
Originally posted by slank
Estimate 10 years ahead on the technology curve.
Originally posted by Hal9000
Scifi, that last link is interesting, but is on page 3. When I try page 1, it goes somewhere else. Can you provide the beginning. I would like to know who is being interviewed. I see the mention of the TR3B and Roswell material. So I gotta know more. Thanks.
Originally posted by Seraphim_Serpente
No duh - HELLO the company is called "Intel" & what, that is just like a
"Co-Incidence"? Yeah & "RAND" is not Really the CIA & DarpaNet (the "Packet" idea) was no Big Deal really!
Originally posted by Civil44
Also does anyone know off the top of there head what the smallest transistors that we can make are before we start having electron bleeding?