Steven Quincy Urkel (born July 25, 1976), generally known as Steve Urkel, is a fictional character on the ABC/CBS comedy sitcom Family Matters, portrayed by Jaleel White. Originally slated to have been a one-time guest on the show, he soon became its most popular character.
Steve was the epitome of a geek/nerd, with large, thick eyeglasses, "high-water or flooding" pants held up by suspenders, multi-colored cardigan sweaters, and a high-pitched voice. He professed unrequited love for neighbor Laura Winslow, perpetually annoyed her father, Carl, and tried to befriend her brother, Eddie. Amongst the rest of the family, Harriette; Rachel; and "Mother" Estelle Winslow were more accepting and caring of Urkel.
Throughout the series' run, Steve was central to many of its recurring gags, primarily gratuitous property damage and/or personal injury as a result of his inventions going awry or his outright clumsiness. .... for more please look the link
http://en.wikipedia.org/wiki/Urkel
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