V
- Developer
Overview
All data
6 statements · 0% with external sources · numbers in brackets are citations
On other databases
1 identifiers linking VP/CSS across the web's reference databases
6 statements · 0% with external sources · numbers in brackets are citations
1 identifiers linking VP/CSS across the web's reference databases
From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0
VP/CSS was a time-sharing operating system developed by National CSS. It began life in 1968 as a copy of IBM's CP/CMS, which at the time was distributed to IBM customers at no charge, in source code form, without support, as part of the IBM Type-III Library. Through extensive in-house development, in what today would be termed a software fork, National CSS took VP/CSS in a different direction from CP/CMS. Although the two systems would eventually share many capabilities, their technical implementations diverged in substantive ways.