David Cheriton

Born in Vancouver, British Columbia, Canada, Cheriton attended public schools in the Highlands neighborhood of Edmonton, Alberta, Canada. He briefly attended the University of Alberta where he had applied for both mathematics and music. He was rejected by the music program, and then went on to study mathematics and received his Bachelor of Science (B.S.) degree from the University of British Columbia in 1973. Cheriton received his Master of Science (M.S.) and Doctor of Philosophy (Ph.D.) degrees in computer science from the University of Waterloo in 1974 and 1978, respectively. He spent three years as an assistant professor at his alma mater, the University of British Columbia, before moving to Stanford. ==Research==

Cheriton was involved in creating three microkernel operating systems (OSes). He was one of the early principal developers of Thoth, a real-time operating system, and then the Verex kernel. He then founded and led the Distributed Systems Group at Stanford University, which developed a microkernel OS named V. He has published profusely in the areas of distributed computing and computer networking. Cheriton was the mentor and advisor of students such as: Sergey Brin and Larry Page (founders of Google), Kenneth Duda (founder of Arista Networks), Hugh Holbrook (CTO and founder of Tintri). As of 2016, Cheriton is working with Stanford students on transactional memory, making memory systems that are resilient to failures. ==Industry==

Cheriton cofounded Granite Systems with Andy Bechtolsheim. The company developed gigabit Ethernet products. It was acquired by Cisco Systems in 1996. which was later acquired for $625M by EMC in 2004. VMware had a successful public offering in 2007. In 2001 Cheriton and Bechtolsheim founded another start-up company, Palo Alto based Kealia. Kealia designed a high-capacity streaming video server; Galaxy, a range of servers based on AMD's Opteron microprocessor; and Thumper, an enterprise-grade network attached storage system. Kealia was bought by Sun Microsystems in 2004, with Thumper becoming the Sun Fire X4500. In 2004, Cheriton cofounded (again with Bechtolsheim) and was chief scientist of Arista Networks, where he worked on the foundations of the Extensible Operating System (EOS). Arista had a successful public offering in 2014. Cheriton is an investor in and advisory board member for frontline data warehouse company Aster Data Systems, which was acquired by Teradata in 2011 for $263M. Cheriton is also one of the earliest investors in Tintri, a storage virtualization company founded by his student Kieran Harty. and he founded OptumSoft. In 2014, Cheriton cofounded and invested in Apstra, Inc. In 2015, he cofounded and invested in BrainofT, Inc. (Caspar). He currently serves as the Chief Data Center Scientist at Juniper Networks. ==Lifestyle==

Although the Google investment alone would be worth over US$1 billion, Cheriton has a reputation for a frugal lifestyle, avoiding costly cars or large houses. He was once included in a list of "cheapskate billionaires". On November 18, 2005, the University of Waterloo announced that Cheriton had donated $25 million to support graduate studies and research in its School of Computer Science. In recognition of his contribution, the school was renamed the David R. Cheriton School of Computer Science. and donated several millions of dollars to Stanford to fund research. He campaigned against Asynchronous Transfer Mode (ATM) that was favored by telephone carriers, preferring Ethernet, which he saw as a simpler, proven option. Ethernet gradually superseded alternatives. ==Personal life==

In 1980, Cheriton married Iris Fraser. They divorced in 1994. According to public record, Cheriton has made donations to Republican causes including the party, candidate PACs, senators, and made a total of over $5,000 in donations to the presidential candidate Donald Trump. ==See also==