Windows 1.0
![](/Images/godic/202501/20/Windows1.01900.png")
![Microsoft Windows 1.0 brochure, published in January 1986](/Images/godic/202501/20/Microsoft_Windows_1.0_page11900.jpg")
![MS-DOS Executive file manager.](/Images/godic/202501/20/MS-DOS_Executive,_Windows_1.041900.png")
Windows 1.0 is a graphical personal computer operating environment developed by Microsoft. Microsoft had worked with Apple Computer to develop applications for Apple's January 1984 original Macintosh, the first mass-produced personal computer with a graphical user interface.