View source for Draft:30-bit computing

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{{AFC comment|1=Topic must be covered by [[WP:RELIABLE]] and [[WP:SECONDARY]] [[WP:IC|inline sources]] to demonstrate the need for an article about the topic. So far it only demonstrates passing [[WP:SIGCOV|trivial coverage]]. [[User:MicrobiologyMarcus|<span style="font-size:70%; font-family:serif">microbiology</span>Marcus]] <sup>(''[[User talk:MicrobiologyMarcus|petri dish]]·[[Special:Contributions/MicrobiologyMarcus|growths]]'')</sup> 20:23, 12 December 2023 (UTC)}}

{{AFC comment|1=No significant coverage in any other section than the "Examples" – '''[[User:Kilaseell|Kilaseell]]''' - [[user talk:Kilaseell|Message me!]] - 20:00, 7 November 2023 (UTC)}}

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{{Short description|page on 30-bit computing}}
{{Draft topics|computing}}
{{AfC topic|product}}

{{N-bit|30|}}

A 30-bit word can also store 5 [[six-bit character code|6-bit characters]]. Generally if [[floating-point arithmetic]] was supported in such systems they had option of using double-precision format of 60-bits. Systems with a 30-bit architecture were heavily used for military and aerospace applications particularly with projects initiated in the 1950/60's. 

One of the most notable families of machines to use a 30-bit words were those developed for the [[Naval Tactical Data System]].<ref name="sea">{{cite book |last1=Boslaugh |first1=David L. |title=When Computers Went to Sea: The Digitization of the United States Navy |date=16 April 2003 |publisher=John Wiley & Sons |isbn=978-0-471-47220-9 |url=https://books.google.com/books?id=Mi8MhzheOokC |language=en}}</ref><ref name="univac">{{cite book |last1=Lundstrom |first1=David E. |title=A few good men from Univac |date=1987 |publisher=Cambridge, Mass. : MIT Press |location=Cambridge, Mass. |isbn=978-0-262-12120-0 |url=https://archive.org/details/fewgoodmenfromun00lund/}}</ref> The first machine in the class been the [[AN/USQ-17]] which was designed by [[Seymour Cray]],<ref name="sea" /> subsequently variations of this architecture would be used by the [[United States Navy]], the [[United States Marine Corps]], [[NASA]] and the [[Federal Aviation Administration|FAA]] for the [[Common ARTS#History|ARTS III]] TRACON.<ref name="artsiii">{{cite journal |last1=Walther |first1=W. |title=Multiprocessor self diagnosis, surgery, and recovery in air terminal traffic control |journal=ACM SIGOPS Operating Systems Review |date=1 January 1973 |volume=7 |issue=4 |pages=38–44 |doi=10.1145/957195.808047 |url=https://dl.acm.org/doi/abs/10.1145/957195.808047 |access-date=18 November 2023 |issn=0163-5980}}</ref> This was based around the Univac 8303 IOP (I/O Processor) which could be configured in a multiprocessor configuration, depending on the specific Air traffic control site (New York had the largest). It was also used by several airlines in the form of the UNIVAC 490-494 to provide a [[Airline reservations system]] in competition with [[IBM|IBM's]] [[Sabre (travel reservation system)|Sabre]] Reservation system.

The unrelated Univac 1050 system was notable for been the largest military order for commercial computers in the early 1960's.<ref>{{cite news |author1=Gene Smith |title=Past and Present Officials Deny Wall St. Rumor of Univac Woes |url=https://www.nytimes.com/1964/08/27/archives/past-and-present-officials-deny-wall-st-rumor-of-univac-woes.html?searchResultPosition=1 |work=The New York Times |date=27 August 1964 |pages=45,50}}</ref> It was deployed in Vietnam and other parts of SE Asia and was heavily used with regards to [[Air Materiel Command]] logistic supply chain.<ref>{{cite book |editor=Beth F. Scott |editor2=James C. Rainey |editor3=Andrew W. Hunt |url= https://archive.org/details/bub_gb_IA20xVTl-nEC  |pages=133,140,345|title=The Logistics of War – a historical perspective |publisher=The Air Force Logistics Management Agency |year=2000 |isbn= 978-1-4289-9378-5 |access-date=21 January 2013}}</ref> <ref>{{cite book |last1=Nalty |first1=Bernard C. |title=Air war over South Vietnam, 1968-1975 |date=2000 |publisher=Washington, D.C. : Air Force History and Museums Program |isbn=9781478118640 |pages=226 |url=https://archive.org/details/airwaroversouthv0000nalt/ |access-date=19 November 2023}}</ref>

The RCA 4100 series was a family of militarized machines that was used in Aerospace operations. The RCA 4101  model been used in the [[AN/FPQ-6]] radar system to provide corrections to the output data. The 4202-S model was built for use in tracking of recently launched Space vehicles.<ref>{{cite conference |last1=Garner |first1=E. T. |last2=Oseas |first2=J. |book-title=Proceedings of the October 27-29, 1964, fall joint computer conference, part I |title=The 4102-s space track program |date=27 October 1964 |pages=517–526 |doi=10.1145/1464052.1464100 |url=https://doi.org/10.1145/1464052.1464100 |publisher=Association for Computing Machinery|isbn=9781450378895 |s2cid=15789998 |access-date=12 December 2023}}</ref>

The [[Adage, Inc.|Adage]] Graphics Terminal family was built around a 30-bit processor with up to 32KW of core memory combined with a specialised [[Digital-to-analog converter|DAC]], vector generator and display.<ref>{{cite conference |last1=Hagan |first1=Thomas G. |last2=Nixon |first2=Richard J. |last3=Schaefer |first3=Luis J. |book-title=Proceedings of the December 9-11, 1968, fall joint computer conference, part I |title=The adage graphics terminal |date=1968 |pages=747–755 |doi=10.1145/1476589.1476685 |url=https://dl.acm.org/doi/10.1145/1476589.1476685 |publisher=Association for Computing Machinery|isbn=9781450378994 |s2cid=8455740 |access-date=27 November 2023}}</ref><ref>{{cite web |title=Adage Graphics Terminal (Brochure 1969) |url=http://bitsavers.org/pdf/adage/agt/1969_Adage_AGT_Brochure.pdf |website=bitsavers.org |access-date=27 November 2023}}</ref><ref>{{cite web |title=ADAGE GRAPHICS SYSTEMS - GENERAL INFORMATION MANUAL |url=http://bitsavers.org/pdf/adage/agt/Adage_Graphics_Systems_General_Information_Manual_1972.pdf |website=bitsavers.org |access-date=27 November 2023}}</ref>

==Examples==
* [[UNIVAC 1103#1104|UNIVAC 1104]]<ref>{{cite journal|url=https://wiki.cc.gatech.edu/folklore/index.php/The_UNIVAC_1102,_1103,_and_1104#The_1104|title=The 1104|journal=Unisys History Newsletter|volume=6|number=1|date=January 2002|author=George Gray|archive-url=https://web.archive.org/web/20160305172816/https://wiki.cc.gatech.edu/folklore/index.php/The_UNIVAC_1102,_1103,_and_1104#The_1104|archive-date=March 5, 2016}}</ref><ref name="vipclubmn">{{cite web |title=30-bit Computers, Ch 52 |url=https://vipclubmn.org/CP30bit.html |website=vipclubmn.org |access-date=26 October 2023}}</ref>
* [[AN/USQ-17]]<ref>{{cite web |last1=Boslaugh |first1=David L. |title=IEEE Global History Network - First-Hand:Building the U.S. Navy's First Seagoing Digital System - Chapter 4 of the Story of the Naval Tactical Data System |url=https://ethw.org/First-Hand:Building_the_U.S._Navy%27s_First_Seagoing_Digital_System_-_Chapter_4_of_the_Story_of_the_Naval_Tactical_Data_System#Mr._Seymour_R._Cray.2C_a_Genius_With_Transistors |website=ETHW |access-date=25 October 2023 |language=en |date=12 May 2021}}</ref><ref name="vipclubmn" /><ref name="real">{{cite web |title=Real Machines with 16, 32, and 30-bit words |url=http://www.quadibloc.com/comp/cp0304.htm |website=www.quadibloc.com |access-date=26 October 2023}}</ref>
* [[AN/USQ-20]]<ref name="vipclubmn" />
* [[AN/UYK-8]]<ref name="vipclubmn" />
* UNIVAC 1289 (CP-890/UYK) - used as the primary navigation computer of the [[Trident_submarine|Trident SSBN]].
* [[UNIVAC 490]]<ref name="vipclubmn" />
** UNIVAC 491
** UNIVAC 492
** UNIVAC 494<ref>{{cite web |title=UNIVAC 494 System Description |url=http://bitsavers.org/pdf/univac/494/UP-4032r2_Univac494sys_1969.pdf |website=Bitsavers.org |publisher=Sperry Rand Corporation |access-date=29 October 2023}}</ref>
* [[UNIVAC 1050]]<ref name="real" />
* RCA 4100<ref name="real" /><ref>{{cite web |title=RCA 4100 Programmers Reference |url=http://www.bitsavers.org/pdf/rca/4100/TP1086_RCA_4100_Programmers_Ref.pdf |website=Bitsavers.org |publisher=RCA |access-date=26 October 2023 }}</ref>

==References==
{{Reflist}}

{{CPU technologies}}

[[:Category:Computer data]]