[2][3] Despite similar names and close development dates, it is unrelated to UNIX System V. The key concepts in V are multithreading and synchronous message passing.
Compiles could be done either on V, or on VAX Unix machines that provided file service in a more stable environment than the ever-changing research system.
After the initial implementation on one computer, the Versatile Message Transaction Protocol (VMTP) was developed to extend the send-receive-reply system call semantics over a local area network.
The Virtual Graphics Terminal Service (VGTS) provided a modular windowing system for both local and remote applications.
The Tektronix VM700 television measurement instrument was developed in a networked V environment in the late 1980s and ran a lightly modified version of the V operating system; this device was manufactured and sold for many years.