Long-time Slashdot reader cusco writes: Forty years ago today Microsoft introduced its new Graphical User Interface for MS-DOS. Inspired by the Xerox PARC project Alto, as was the Apple Mac, it was their first attempt to address the user unfriendliness of the standard computer interface. Named Windows 1.0 after the “windows” it created to view individual running programs, it generated quite a bit of interest at the initial reveal. Unfortunately, difficulty in ironing out bugs (especially in memory management) delayed release for two years, to November 1985.