Bill Gates' 40th anniversary email: Goal was 'a computer on every desk'

It's been 40 years since Bill Gates and Paul Allen founded Microsoft.

To mark the anniversary, Gates sent an email to Microsoft employees Friday, which CNNMoney was able to independently confirm. The message, which made the rounds on Twitter, invokes the origin of Microsoft (MSFT, Tech30), which opened it doors on April 4, 1975.

"Early on, Paul Allen and I set the goal of a computer on every desk and in every home. It was a bold idea and a lot of people thought we were out of our minds to imagine it was possible," Gates wrote. "It is amazing to think about how far computing has come since then, and we can all be proud of the role Microsoft played in that revolution."

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