In Pictures: 2012’s 25 geekiest 25th anniversaries

Here's a look back at the most memorable events and products from 1987

OS/2 Debuts

A product of the Joint Development Agreement signed by IBM and Microsoft in 1985, the OS2 1.0 operating system was announced in the spring of 1987 and released in December. Microsoft split from OS/2 development in 1990 and IBM stopped supporting it in 2006.

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