Microsoft logo 1987

Microsoft's fourth corporate logo arrived in 1987. That was a year after the company began trading as a public stock and moved to its current home of Redmond, Wash., from nearby Bellevue. Reagan was still president, in his second term. It would be three years still before the landmark arrival of Windows 3.0.

This is the logo most familiar to people -- it endured a quarter-century, through the presidencies of George H.W. Bush, Bill Clinton, and George W. Bush, as well as Barack Obama's time in office to date.