Windows launched after the Mac Only by a little bit of time in some regards; for Windows 1.0 Microsoft first presented it to the public on November 10, 1983. T

Windows launched after the Mac Only by a little bit of time in some regards; for Windows 1.0 Microsoft first presented it to the public on November 10, 1983. The first retail release, originally slated for release in April 1984, Windows 1.01, was instead released on November 20, 1985. System 1, the classic Macintosh System Software was released in January 1984. Also, yes, the Lisa was arguably the first to ship with the Desktop graphical interface most like the Macintosh prior to that even. I'd posit that both Windows and Macintosh graphical user interface designs started around the same time effectively due to the market and depending on whether you were in the education or business sector, you could perceive the pervasiveness of each wildly differently. I personally believe the Macintosh designers' early choice to heavily lean on skeuomorphic designs and its popularity in the nascent Desktop computer publishing industry reinforced the architectural multi-tasking choices made early in its development.