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Mr. Walden ultimately enrolled at San Francisco State Faculty (now College) and acquired his bachelor’s diploma in arithmetic in 1964. His curiosity in computing grew from a course he took in numerical evaluation that concerned engaged on an IBM pc.
After school, he went to work for the Massachusetts Institute of Know-how’s Lincoln Laboratories as a pc programmer within the House Communications Division.
In 1965, he met Sara Elizabeth Cowles, an training administrator, and so they married the subsequent yr. He was employed at Bolt Beranek and Newman in 1967. Quickly after, the corporate gained a contract to construct the primary I.M.P.
“It was a really small group working collectively on a regular basis,” Mr. Walden mentioned in a 1990 interview with the Charles Babbage Institute on the College of Minnesota, an archive and analysis heart specializing in info expertise.
“We have been out and in of one another’s places of work and serving to one another debug,” he added.
Each discovery drew pleasure. “We’d run in and say, ‘Look, I received this operating!’” he mentioned.
Mr. Walden left Bolt Beranek for a yr in 1970 to work at Norsk Knowledge, serving to that firm construct a pc modeled after the I.M.P. He returned to Bolt Beranek in 1971 and stayed till 1995. He later grew to become an skilled within the subject of administration. An avid pc historian, he was an editor on the IEEE Annals of the Historical past of Computing, printed by what was initially the Institute of Electrical and Electronics Engineers.
Though he didn’t maintain a sophisticated diploma, Mr. Walden acquired an honorary doctorate from California State College in 2014 for his work on the Arpanet. “He remarked to me on a couple of event that he by no means thought he would get that type of honor,” Alex McKenzie, a former colleague of Mr. Walden’s, mentioned in an interview.
Along with his spouse, Mr. Walden is survived by his son, Luke; his brother, Daniel; his sister, Velma Walden Hampson; and two grandchildren.
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