IBM 473L Command and Control System: Difference between revisions

Revision as of 16:39, 10 April 2014

Revision as of 02:00, 11 April 2014

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==OUR phase==

As an upgrade before the IOC phase, an [[IBM 1410]] was leased in February 1964, and the IBM 1401 computer was phased out by April--revisionApril—revision of OTC software for the 1410 computer was by Project OUR (OTC Update and Revision).{{r|Sturm1967}}

==IOC phase==

The [[Librascope AN/FYQ-11 Data Processor Set]]{{r|Figure1-2}} was "a configuration of the L-3055" computer that [[Librascope]] manufactured at [[Glendale, California|Glendale]]<ref> http://www.librascopememories.com/Librascope_Memories/History_files/Climate%20for%20Ingenuity%20-%201965.pdf </ref> procured for the Initial Operational Capability phase with limited FYQ-11 equipment (e.g., without OA-6041 Control-Indicator Console).<ref name=PRM>{{Cite report |title=Programmer's Reference Manual |url=http://bitsavers.trailing-edge.com/pdf/generalPrecision/L-3055/L-3055_Programmers_Reference_Manual_Sep63.pdf |publisher= |accessdate=2014-04-08 |quote=Central Processor, Control Console, and Core Memory … Buffer Processors …Magnetic Tape Consoles, Card Reader/Punch, and Line Printer…Disc Memory}} ([http://www.marksmath.com/files/librascope/prm-01.html webpage transcription at MarksMath.com)]</ref> and only "4 integrated consoles".{{r|Brown}} FYQ-11 had been accepted by the USAF [[Electronic Systems Division]] in late March 1965{{r|Sturm1967}}{{rp|39}} to replace the IBM 1410 (each FYQ-11 was "234 cu ft [and required] 500 sq ft" area).<ref> http://webcache.googleusercontent.com/search?q=cache:9MviGSSVhaMJ:ed-thelen.org/comp-hist/BRL64-l.html+&cd=6&hl=en&ct=clnk&gl=us </ref> The FYQ-11 had been proposed on February 19, 1962, for the Complete Operational Capability{{r|Singer}} (dual AN/FYQ-11 sets with only a single OA-6041.){{r|PRM}} COC programs planned for the L-3055 included the "Deployment Monitor", "ACE-Tactical", and "ACE-Transport"{{r|TR66-261}}<!--Appendix B--> ([[Computer Based Training]] on the FYQ-11 was also planned.)<ref>{{Citation |format=letter |last=O'Brien |first=John T. |date=7 October 1968 |title=Review of Technical Document [ESD-TR-66-261] |publisher=ESD Public Information Division |___location=letter is last page of [http://www.dtic.mil/dtic/tr/fulltext/u2/483236.pdf pdf for ESD-TR-66-261]}}</ref> After FYQ-11 problems, [[John P. McConnell|the USAF Chief of Staff]] in 1966 cancelled the AN/FYQ-11 and the [[Comptroller General of the United States|Comptroller]] was directed to dispose of "the L-3055 system's equipment"{{r|Sturm1967}} (1977 lawsuit claims by the 1968 Librascope parent--[[The Singer Company]]--were—were denied.)

==Complete Operational Capability==

A second IBM 1410 computer was installed by December 15, 1966,{{r|Sturm1967}}{{rp|47}} and the entire 473L System included:

;AN/FYA-2 Integrated Data Transfer Console: The AN/FYA-2{{r|Figure1-2}} ("473L Integrated Console"<ref> |url=http://bitsavers.trailing-edge.com/pdf/informatics/antaccs/ANTACCS_Final_Report_Phase_One_Volume_V_Technology_Part_1_Jan65.pdf |quote=Consoles tied to a core memory buffer which is connected to an IBM 1401 or 1410 at the Air Force Command Post (OTC of 473L). … Data Display Central 465L … LTV 7000 High Speed Display System}}</ref> with Logic Keyboard Display (LKB) provided the fully-equipped 473L operator environment--[[cf.]] AN/FYA-3<ref> http://www.document-center.com/standards/show/MIL-C-27114 </ref> didn't have a Hard Copy Device (HC) for the Multicolored Display (MC), nor a Console Printer (CP); while the AN/FYA-4 only had an Electronic Typewriter/Display (RT) and CP.{{r|Brown}} The console was run by a '''Monitor Program''' in the DPSS,{{r|TR66-261}} and "operational capabilities [were] exercised via operational capability overlays; that is, via plastic masks fitting over the logic keyboard portion of the operator console."{{r|AppendixA}} The original COC plan was for DPSS output for 11 MCs and 15 CPs (i.e., 4 of the simplest AN/FYA-4 consoles for printing reports).{{r|PRM}}

;Query Language (473L Query):<ref>https://www.cs.cmu.edu/afs/cs/project/ai-repository/ai/areas/doc/bib/langs.txt (cites "Sammet 1969, p.665.")</ref>: Query Language was "very similar to the [[COLINGO]] query language{{r|TR65-171}} and was "a constrained English language…for man-machine communication in System 473L. …<!-- The system operator, using the Electronic Typewriter element of the Integrated Console, constructs a Query Language statement … -->to retrieve data from any file in the system or to perform certain other functions."{{r|TR66-261}} For example, the code for airfields both within Brazil and within a 2000 mile [[great-circle distance]] of [[Brazilia]] is:{{r|TR65-171}}

::''Retrieve airfields with country > Brazil, GCD (Brazilia » 2000)''

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|image3=[http://ftp.mirrorservice.org/sites/www.bitsavers.org/pdf/generalPrecision/L-3055/L-3055_Brochure_1964.pdf AN/FYQ-11 CPU Subsystem (p. 12)<br> Mass Memory Subsystem (p. 4)]

}}

==References==

{{Reflist |refs=

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[[Category:Cold War military computer systems of the United States]]

[[Category:United States Air Force equipment]]