July 29, 2015 6:00 AM EDT

Windows 10, the latest version of Microsoft’s iconic operating system, launched on Wednesday. Microsoft has given the interface several nips, tucks and full-on reconstructive surgeries since the first version released some 30 years ago in the early days of personal computing.

Flip through the slides above to see how Windows has evolved new features, typefaces and designs, while retaining that essential concept of the computer screen as a “window” onto the computer’s features. It certainly captures the spirit of the software better than Microsoft’s original codename, “Interface Manager.”

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