After more than 20 years at Sun Microsystems, co-founder and chief scientist Bill Joy is leaving the company.
Joy, once called the "Edison of the internet" by a US magazine, is the leading designer of some of Sun's key technologies, including Solaris software, Sparc microprocessors and Java technology.
He was the designer of the Berkeley version of the Unix operating system, which became a foundation of the internet. He co-founded Sun in 1982.
Joy said that he was proud of his accomplishments and of the strong team Sun has built.
"For 21 years, I've enjoyed the opportunities for innovation provided to me at Sun, but I have decided the time is now right for me to move on to different challenges," he said.
"Bill will continue to be an inspiration to all innovators," said Scott McNealy, co-founder, chairman, president and chief executive officer of Sun. "His many contributions have helped define Sun as one of the most innovative and inspired places on the planet."
Joy's responsibilities will transition to Greg Papadopoulos, chief technology officer and executive vice-president at Sun.
Grant Gross writes for IDG News Service