Editing JOSS (section)

===JOSS-2 switchover===
In May 1964, the decision was made to look for a new machine to replace the JOHNNIAC and dedicate it entirely to running an expanded version of JOSS. The machine would also have to support new terminals made to Rand's specifications, and be delivered by 31 October 1965.{{sfn|Marks|1971|p=2}}

A total of nine bids were received for the new machine. [[Digital Equipment Corporation]] (DEC) won the contest with their new [[PDP-6]] system, and Air Force funding was released for the purchase. DEC also agreed to build thirty terminals based on the [[IBM Selectric typewriter]] modified with a special mechanism to advance to the next page in a fan-fold paper feed. Several other portions of the overall system were delivered from other companies.{{sfn|Marks|1971|p=3}}

The PDP-6 arrived in late July 1965, and was initially tested using [[Teletype Model 33]]'s as terminals. The new version of the code was developed by Charles L. Baker, Joseph W. Smith, Irwin D. Greenwald, and G. Edward Bryan. The system was first declared operational in October, although this included six hours of scheduled maintenance per week.{{sfn|Marks|1971|p=9}} The first prototype terminal arrived in November. In December, a terminal in [[Las Vegas]] was connected to the machine remotely for the first time.{{sfn|Marks|1971|p=3}} In February 1966, this was sent to [[McClellan Air Force Base]], followed by one in August to the [[Air Force Academy]] and two in September to [[Advanced Research Projects Agency|ARPA]] and an Air Force office in [[the Pentagon]]. The first permanent offsite teletype connection for a [[Teletype Model 35]] was installed at the [[Langley Air Force Base]] in February 1967.{{sfn|Marks|1971|p=9}}

With the new machine up and running, JOHNNIAC was taken offline on 11 February 1966, and officially retired on 18 February. Its last running program was written in JOSS and counted down seconds until it would be turned off. The machine was sent to the [[Natural History Museum of Los Angeles County|Los Angeles County Museum]],{{sfn|Marks|1971|p=4}} and eventually ended up at the [[Computer History Museum]] outside [[San Francisco]].<ref>{{cite web |url=https://www.computerhistory.org/revolution/birth-of-the-computer/4/94 |title=JOHNNIAC |website=Computer History Museum}}</ref> Having been replaced by the JOSS-2 system, the original was retroactively known as JOSS-1.{{sfn|Ware|2008|p=15, 109}}