@MrFish: GEM was named by Digital Research Inc. It's name is a retroactive acronym, originally it was just called Gem because the initial project to turn their GSX retargetable graphics library into a workable graphical context system was called "Crystal"...which, in and of itself was a play on IBM's code name for a GUI called "Project Glass" ... basically, GSX became VDI, and AES was added to handle the interaction bits.