Windows 1.0 officially released to the public 40 years ago today (November 20), and despite its age, still has some common similarities with what users can expect from the operating system today.

In the annals of PC history, IBM’s OS/2 represents a road not taken. Developed in the waning days of IBM’s partnership with Microsoft—the same partnership that had given us a decade or so of MS-DOS ...

In 1985, Bill Gates demonstrated at Comdex what could be done with the graphical user interface “Windows 1.0” and praised how much it “oriented itself to the natural visual and working habits of ...