Marc Hannah

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Marc Hannah (born October 13, 1956) is an American electrical engineer and computer graphics designer. He is one of the co-founders of Silicon Graphics Inc. Hannah was born in Chicago, Illinois. Hannah earned a scholarship from Bell Laboratories to attend the Illinois Institute of Technology where he studied Electrical Engineering. Hannah received his B.S. degree in electrical engineering in 1977. Later he attended Stanford University where he obtained his M.S. degree in 1978 and his Ph.D. degree. At SGI, he was a member of technical staff and a co-founder of the company. He is mostly known for making 3-D chips and for the creation of computer programs like Personal IRIS, Indigo, Indigo2, and Indy graphics. The Geometry Engine established the niche for graphics coprocessors, which run alongside CPUs to handle the heavy math needed to manipulate images. In the 1980s the Geometry Engine would enable the imagery in movies as well as in CAD, scientific visualization, engineering, and countless games. Descendants are now found in nearly every smartphone and computer, where they speed up repetitive calculations from graphics to AI.