Editing PL/C (section)

== Legacy ==
PL/C was still in use at the beginning of the 1980s.<ref name="siguccs-marches"/><ref name="cps"/>  However, by then the [[Pascal (programming language)|Pascal]] programming language was beginning to come to the fore as a teaching language, and the move of student access towards smaller and more distributed computer systems than IBM mainframes also continued.<ref name="siguccs-marches">{{cite conference | author-first=Rich | author-last=Stillman | year=1980 | contribution=Technology marches on: Using microcomputers to deliver elementary computer science instruction | title=Proceedings of the 8th annual ACM SIGUCCS conference on User services (SIGUCCS '80) | publisher= Association for Computing Machinery | pages= 135–139 | doi=10.1145/800086.802776 }}</ref><ref name="cornell-history-computing"/>  And PL/I itself never gained the dominance its designers had hoped for in either the business or scientific programming fields.<ref name="cornell-history-computing"/> 

At Cornell itself, the switch to using Pascal in its introductory computer programming classes took place during 1984.<ref>Compare {{cite book | url=https://ecommons.cornell.edu/handle/1813/38057 | title=Cornell University Announcements: Courses of Study, 1983&ndash;84 | publisher=Cornell University | date=July 15, 1983 | page=261 }} with {{cite book | url=https://ecommons.cornell.edu/handle/1813/38065 | title=Cornell University Announcements: Courses of Study, 1984&ndash;85 | publisher=Cornell University | date=July 16, 1984 | page=268 }}</ref>  Conway has said he does not know how long PL/C remained in use at the various sites where it was installed.<ref name=CUPL.Conway/>

In 2012, an effort was ongoing to resurrect the popular [[Michigan Terminal System]] and the software that ran on it as part of an archival effort on IBM 360/370 simulators. Among the things they requested was permission to run the PL/C object code, which was informally granted by those staff associated with it who were still at Cornell.<ref>{{cite web | url=http://archive.michigan-terminal-system.org/discussions/permission-to-include-licensed-programs/forplc | title=For *PLC | publisher=Michigan Terminal System Archive | date=April 3, 2012 | access-date=September 19, 2022 }}</ref>

{{As of|2022}}, the source for PL/C appears to have been lost.