Matthew E. Massengill has been Chief Executive Officer of Western Digital Corp., since January 2000 and has been its Chairman of the Board of Directors since November 2001. Mr. Massengill served as Chief Operating Officer of Western Digital Corp. from October 1999 to January 2000 and Co-Chief Operating Officer from August 1999 to October 1999. Prior to that time, he served for more than five years in various executive capacities within Western Digital Corp. Mr. Massengill served as President of Western Digital Corp., from January 2000 until January 2002. Mr. Massengill has been a Director of Western Digital Corp., since January 2000 and Viewsonic Corp. since December 2003. Mr. Massengill holds a B.S. in Engineering from Purdue University.