Over the last few years I've done a number of talks that fall broadly under the umbrella of "History of Computing". Here are some videos for your enjoyment.
TEDxImperialCollege 2012: The Greatest Machine That Never Was
Computer science began in the '30s ... the 1830s. John Graham-Cumming tells the story of Charles Babbage's mechanical, steam-powered "analytical engine" and how Ada Lovelace, mathematician and daughter of Lord Byron, saw beyond its simple computational abilities to imagine the future of computers.
StrataConf 2012: The Great Railway Caper
The Great Railway Caper: Big Data in 1955
OSCON 2013: Turing's Curse
Looking back on 30 years of programming: there's nothing new since 1983. Examples and implications.
Wired 2014
Fear your subconscious, not tech