There are slides devoted to this topic: Lecture 9, pp. 30-31.

Websites

Columbia’s Computing History page takes you inside the 650 to understand its operation and mechanics.

For a different take, read IBM’s laudatory history of the 650. The article is fairly short and gives few direct details about the machine, focusing instead on its sales and marketing.

Other Media

Explore the operation of the 650 using this simulator.