1988 - President of communication systems division of Rockwell International Corporation.
1991 - President of National Semiconductor Corporation.
- CEO of National Semiconductor Corporation.
1993 - Wrote the book "An American Imperative".
1995 - He co-wrote "Profit from Experience".
1996 - He was the president of Apple Computer Inc.
- CEO of Apple Computer Inc.
- He was the chairman of Apple Computer Inc.
1998 - He was the author of the book "On the Firing Line: My 500 Days at Apple".
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