The 'Doogie Howser' of IT

The 'Doogie Howser' of IT
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Macedonia's Marko Calasan got his first professional credential at age 6, when he passed the Microsoft Certified Systems Administrator exam. Now 9, he just went for the follow-on systems engineer certification.

January 19, 2010 4:00 AM PST

Photo by: Courtesy of Marko Calasan

| Caption by: Ina Fried

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