Here I have started the file server and the monitor window appears. This is version 1.00 of the L4 FS, dating from 15th February 1991. It might be thought to be a bit surprising that it took Acorn over four years to bring out their first 32-bit server. The icon on the desktop looks a bit like a couple of Stacking FileStores, and this was changed to a pyramid icon in the later version.