Editing BS2000 (section)

===1990s===
With the advent of the [[VM2000]] virtual machine in 1990, multiple BS2000 systems, of the same or different versions, can run in parallel on the same computer. The hierarchical storage management system (HSMS) swapped out infrequently used data to cheaper storage media. When the data is needed again, it is restored to high-speed access media. The ROBAR tape archiving system supported robot systems.
In 1991, the [[Computer security|Security]] evaluation to F2/Q3 was completed.
From 1992 through 1995, BS2000/OSD V1.0 was made open to application software and was renamed BS2000/OSD (Open Server Dimension). Full support of the XPG4 standard was achieved in 1995 after the porting of the [[POSIX]] interfaces in 1992.<ref name="BS2000 vita" />
In 1996, BS2000/OSD was ported to the [[MIPS architecture]]. Although the operating system ran on different hardware architectures (S servers with /390 architecture and SR2000 servers for the MIPS architecture), applications produced for /390 can be used on computers based on MIPS architecture without recompilation due an emulation layer for legacy code.
In 1997, WebTransactions allowed applications to use the [[Internet]].
In 1999, BS2000/OSD was the first operating system to be awarded Internet Branding by [[The Open Group]].