Editing Turing (programming language) (section)

===TPlus===
TPlus is an open-source implementation of original (non-Object-Oriented) Turing with systems programming extensions developed at the University of Toronto and ported to [[Linux]], [[Oracle Solaris|Solaris]], and [[macOS|Mac OS X]] at [[Queen's University at Kingston|Queen's University]] in the late 1990s.<ref>{{cite web|last=Cordy|first=James|title=Turing+ 6.1|url=http://txl.ca/txl-tplusdownload.html|access-date=11 December 2020}}</ref> TPlus implements [[#Turing+|Turing+]] (Turing Plus), a concurrent systems programming language based on the original Turing programming language. Some, but not all, of the features of Turing Plus were eventually subsumed into the present [[#Object-Oriented Turing|Object-Oriented Turing]] language. Turing Plus extends original Turing with [[Process (computing)|processes]], [[Monitor (synchronization)|monitors]] (as specified by [[C.A.R. Hoare]]), and language constructs needed for system programming such as binary input-output, separate compiling, variables at absolute addresses, type converters and other features.