Bill Gates left the Microsoft board after founding the company four decades prior.
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Microsoft purchased Activision Blizzard in a record-breaking $69 billion takeover.
Skype, the pioneering online video calling service established in 2003, is taken offline for good by Microsoft.
Bill Gates became the richest man in the world with a net worth of $12.9 billion.
Microsoft Launches Windows ME.
Microsoft purchased Nokia for $7.2 billion.
