Carly Fiorina was president and CEO of Hewlett-Packard from 1999 to 2005 and chairman from 2000 to 2005. Before joining HP, she spent nearly twenty years at AT&T and Lucent Technologies, where she held a number of senior leadership positions. She has a B.A. in medieval history and philosophy from Stanford University, an M.B.A. from the University of Maryland, and an M.S. from MIT's Sloan School of Management. Fiorina currently serves on several boards of directors, including those of revolution Healthcare Group and Taiwan Semiconductor Manufacturing.