A Very Brief History of Computing, 1948-2015 [video] (opens in new tab)

If your in London Gresham College do a wide range of interesting lectures I can recommend having a look at their program.

They go back over 400 years

Summary: Capitalism corrupted software engineering, because you get rewarded for getting to market quickly and selling maintenance contracts, not for making quality software, free of defects and security vulnerabilities.

I wish they would just host the video on YouTube so it would stream quickly. I'm getting pause after pause here.