Doug Engelbart's 1968 mother of all demos
<a href="http://www.dougengelbart.org/firsts/dougs-1968-demo.html" rel="nofollow">http://www.dougengelbart.org/firsts/dougs-1968-demo.html</a>
Remember that most programmers were using punched cards into the mid 1970's; Doug's work was impossible magic.<p>History of Computing class at San Jose State University had a speaker series, Fall 2011, with an excellent list of speakers (except my talk). <a href="http://www.cs.sjsu.edu/~mak/SpeakerSeries/index.html" rel="nofollow">http://www.cs.sjsu.edu/~mak/SpeakerSeries/index.html</a><p>The Computer History Museum has videos of their lectures, starting in 1998. <a href="http://www.computerhistory.org/events/past/" rel="nofollow">http://www.computerhistory.org/events/past/</a>
These are also in CHM's Youtube channel, plus other historic videos: <a href="https://www.youtube.com/user/ComputerHistory" rel="nofollow">https://www.youtube.com/user/ComputerHistory</a>
CHM also has an oral history project with multi hour interviews: <a href="http://www.computerhistory.org/collections/oralhistories/" rel="nofollow">http://www.computerhistory.org/collections/oralhistories/</a>