On This day, November 20, 1985. Microsoft released its 16-bit graphical operating environment, Windows 1.0, which offered limited multitasking for MS-DOS programs.
Windows 1.0 is considered a "Front-end for the MS-DOS operating system", a description that has also been applied to later versions of Windows.
Windows 1.0 offers programs such as: calculator, calendar, clipboard viewer, Clock, Notepad, Paint, Reversi, Cardfile, Terminal and Writer.
Windows 1.0 was adopted very slowly, largely because it lacked an "App Killer" to drive users to use it while encouraging the use of a mouse for navigation, which was a relatively new concept in Windows 1.0. that moment.
Windows 1.0 does not allow overlapping windows. Instead all the windows are tiled. Only dialog boxes can appear on top of other windows. This is because Apple computer had that feature.
Windows will have four versions: 1.01, 1.02, 1.03 and 1.04.