FVWM
The F Virtual Window Manager (FVWM) is a virtual window manager for the X Window System. Originally a twm derivative, FVWM has evolved into a powerful and highly configurable environment for Unix-like systems. History In 1993, during his work analyzing acoustic signatures for the United States Department of Defense, Robert Nation began hacking twm with the intent of simultaneously reducing memory usage and adding support for virtual desktops. Already known for his rxvt terminal emulator, Nation worked on reducing the memory consumption of his new window manager. Deciding to test FVWM's reception, on June 1, 1993, he bundled it with a rxvt release. In 1994 Rob Nation stopped developing FVWM and made Charles Hines the maintainer. Rob Nation's last release of FVWM was fvwm-1.24r. The post-Rob Nation version of FVWM uses a different configuration file format and has a significantly different architecture. Many Linux distributions, as a result, distributed both fvwm-1.24r and later releases of FVWM as separate programs. , fvwm-1.24r still compiles and runs on a modern Linux system without any problems. A small number of users continue to use the older FVWM release. In late 1998 the office of FVWM maintainer was abolished and further development has been