A popular system of version control and configuration management software from Serena Software, Inc., San Mateo, CA, that runs on DOS, Windows, OS/2 and various Unix platforms. It is widely used on PC-based LANs. PVCS was originally developed by INTERSOLV of Rockville, MD, which was acquired by Micro Focus Group in 1998. Micro Focus later changed its name to MERANT and was acquired by Serena Software in 2004. For more information, visit www.serena.com. See MERANT.