Programming Language/Systems
<language> (PL/S) An IBM machine-oriented language derived from PL/I in 
the late 1960s for the IBM 360 and IBM 370. PL/S permitted inline assembly 
language and control over register usage.
 
Much of IBM 360 OS/MFT(?), OS/MVT(?), OS/VS1 and OS/VS2 (OS/SVS and MVS) were 
written in PL/S. It was used internally and never released to the public. It is 
documented in various IBM internal ZZ-? publications.
 
Versions: PLS1, PLSII.
 
["PL/S, Programming Language/Systems", W.R. Brittenham, Proc GUIDE Intl, GUIDE 
34, May 14, 1972, pp. 540-556].
 
[Were MFT and MVT in PL/S or pure BAL? Dates?]
 
(1999-01-24)
 
  
 
  
Nearby terms: 
							programming fluid « programming language « 
							Programming Language/Cornell « Programming 
							Language/Systems » Program Temporary Fix » 
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