 Her brother, Peter Roizen was the other co-founder; he had graduated from the University of California, Berkeley, and had written the original software named "Table Maker" that had launched the company.From 1987 until 1994, Roizen also served on the board of directors of the Software Publishers Association and was its president from 1988 to 1990.From 1996 to 1997, Roizen was Vice President of World Wide Developer Relations for Apple Inc. She also served on the board of Great Plains Software from 1997 until its acquisition by Microsoft in 2001.