VIRTUAL SOFTWARE SYSTEMS

VSSI was formed in 1978 to develop extensions to the IBM VM operating system for the purpose of supporting the Transaction Processing Facility (TPF), an IBM system widely used by the travel, hospitality, and financial service industries. The first product developed was the Virtual Programmed Airline Reservation System (VPARS), a shadow database facility which allowed developers to code and test TPF programs using a shared database system under VM... During the 2014 time frame, VSSI began work on a z/Linux product, ShadowDisk/Z. ShadowDisk/Z does for z/Linux users what VPARS does for z/TPF users; i.e., it provides a robust developer tool for the testing, and deployment of z/Linux applications via use of a shared database, thus saving users a significant amount of data storage hardware cost.

Also known as: Virtual Software Systems, Inc., VSSI

Primary location: Gainesville United States