Happy 30th Birthday!

In honor of the thirtieth anniversary of the IBM Personal Computer, the OS/2 museum started a new series of articles, this time dealing with the history of DOS—the predecessor of OS/2 and the first OS developed by Microsoft in cooperation with IBM. The first two installments deal with the prehistory of DOS and with the DOS 1.x releases. As usual, VirtualBox was quite helpful for supplying screenshots of vintage software.

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