So, what’s in a name change?
When VMS first came out in 1978 it was officially called VAX/VMS, this was to couple the OS with DEC’s latest range of servers the VAX family.
Angus Durie

When VMS first came out in 1978 it was officially called VAX/VMS, this was to couple the OS with DEC’s latest range of servers the VAX family. Over the years’ other versions of the OS appeared, including MicroVMS and DesktopVMS, and apparently there was even a Russian reverse engineered version (that’s another story entirely). In the late 80s DEC started to officially refer to the OS as plain old VMS, the thinking being that by now VMS had established itself as its own entity plus they were working on a new family of servers (Alpha).
Roll forward to 1992, times were changing, Microsoft and Intel were starting to make massive waves in commercial IT previously dominated by the likes of DEC and IBM. Oracle and other software companies were also making headlines plus Unix was making huge strides as the OS of choice.
In an effort to appear relevant, VMS Marketing (remember them) pushed to make VMS sound more like an open technology (i.e. Unix like) and this was achieved by making the OS Posix compliant and changing the name to OpenVMS. Problem was VMS was never fully Posix compliant and the name change just seemed to annoy people. Customers and even their own engineers still referred to the OS as VMS even though this was officially seriously frowned upon. In retrospect did the name change work? What do you think?
More articles
View all
The Rdb Conundrum and Ways to Solve It
Oracle's decision to end Rdb support on OpenVMS X86 has been on the cards for years. With the Malmö Bootcamp 2026 bringing the conversation into the open, we look at the options available to Rdb customers who want to plan their next move.

Monitoring OpenVMS Servers with Modern Tools
OpenVMS has long been a cornerstone of mission-critical computing. But as the pool of skilled engineers shrinks, visibility into how these systems are performing has never been more important.

Note from an old DEC-hand
Ken Olsen once called VMS the best operating system for business. Technically, he had a point. The case for OpenVMS is rarely lost on engineering - only on marketing.
Comments are reviewed before they appear publicly.
Comments (0)
No comments yet. Be the first to add one.