What laptop does Steve Ballmer use for his presentations?

Steven Anthony Ballmer (born March 24, 1956) is an American businessman and has been the chief executive officer of Microsoft Corporation since January 2000.

Ballmer is the second person after Roberto Goizueta to become a billionaire in U.S. dollars based on stock options received as an employee of a corporation in which he was neither a founder nor a relative of a founder. In Forbes 2008 World's Richest People ranking, Ballmer was ranked the 43rd richest person in the world, with an estimated wealth of $15 billion.

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