Celebrating President's Day: Test your knowledge of 10 tech CEOs

We know all about former U.S. chief executives such as George Washington and Abraham Lincoln, but what about CEOs of today's technology companies, such as Cisco, Google and Microsoft?

Everybody knows Abe Lincoln was the tallest president, but not everybody knows he traced his feet to have his shoes custom made by mail order. In the spirit of President's Day this month, test your knowledge of lesser known facts about the premiere CEOs in high technology, such as those from Cisco, Google and Microsoft. What little-known facts do you know about the CEOs of today's most powerful technology companies? Here are 10 questions. Keep score and find out at the end how well you did.

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