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UO CIS Colloquium, January 13, The University's 40-year-old PDP-7 computer is alive again in Seattle

The PDP-7 Computer

Computer and Information Science Colloqium, January 13, 2011, The University's 40-year-old PDP-7 Computer is Alive Again in Seattle. Dr. Harlan W. Lefevre, Emeritus Professor of Physics, University of Oregon, sent an email in January, 2006, to Paul Allen's website, PDPplanet.com, describing the University's Digital Equipment Corporation PDP-7 computer. He suggested that this computer, the last PDP-7 in operation in the world, should have a museum home. The PDPplanet people immediately came to see the machine and stated that they would keep it in operation if it came to their "Living Computer Museum". Dr. Lefevre will talk about the two year bureaucratic struggle it took to transfer the computer to the museum, and then go back to the beginning: How the UO acquired this remarkable computer, learned how to use it in nuclear spectroscopy, and had fun along the way.

Date: Thursday, January 13, 2011
Time: 3.30p.m.
Location: 220 Deschutes (main door and across the foyer to stairs to second floor)
Refreshments will follow.

Biography
Dr. Harlan Lefevre has been an Emeritus Professor of Physics at the University of Oregon since his retirement in 1998. Prior to that, Dr. Lefevre was a member of the Physics Department faculty for 37 years. While a professor he also worked at Lawrence Livermore National Laboratory in the 1970s and at Brookhaven National Laboratory in the 1980s. He was an NSF Senior Fellow at the University of Melbourne in 1988.

Dr. Lefevre's research with his graduate students in nuclear physics was centered around a 4 MeV positive ion accelerator located in the basement of the UO Volcanology building. The accelerator was equipped with a pulser and a klystron buncher which delivered nanosecond wide bunches of MeV ions to neutron producing targets. Its primary use was neutron spectroscopy by time of flight. The PDP-7 was used mainly for data collection and display and analysis of time of flight spectra and other spectra.