Co-founder and first CEO of Sun Microsystems in the early 1980s.
He decided to go into the technology field after reading about the founding of Intel when he was 14.
He was a big proponent of alternative energy and invested heavily in ethanol makers.
His father, an officer in the Indian Army, had a permanent post in New Delhi, India.
His venture capital firm backed several successful tech startups, including one bought by Bill Gates and Microsoft.