The 1984 introduction of the Macintosh using GUI technology with it's drop- and-drag file mobility, windows, trash cans, and user friendly interface was eons ahead of what Apples competitors in the PC market were able to offer. It wasn't long before the features introduced by the Mac began to appear in other operating systems. As Microsoft and others began to cut into the Macintosh's market share the Mac was hampered by its ability to run apple software and only apple software, while Windows and other software applications could run on any operating system. Despite this loss the Mac remained profitable through the late 1980's. Later when Apple sued Microsoft alleging that it had stolen the GUI technology from Apple for use in it's Windows 1.0 Bill Gates was to have said: “ No, Steve, I think its more like we both have this rich neighbor named Xerox, and you broke in to steal the TV set, and you found out I had been there first, and you said “ Hey, that's no fair! I wanted to steal the TV set!”
This litigation in which both sides were shown to have “unclean hands” in terms of appropriating GUI