This article is rated Stub-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects:

Computing: Software This article is within the scope of WikiProject Computing, a collaborative effort to improve the coverage of computers, computing, and information technology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ComputingWikipedia:WikiProject ComputingTemplate:WikiProject ComputingComputing articles ??? This article has not yet received a rating on the project's importance scale. This article is supported by WikiProject Software.

VSPC was a programming environment that ran under MVS and VS1, and I think, VSE on customer computers. It provided a virtual operating system that was portable across the various host operating systems, and that had far less overhead per user than TSO had under MVS. I am unaware of VSPC being offered as a service in the US, though it may, for all I know, have been a service in other countries. — Preceding unsigned comment added by John W. Kennedy ( talk • contribs) 04:15, 15 December 2012 (UTC) reply