There are slides devoted to this topic: Lecture 0, pp. 38-39, Lecture 9, p. 13.


Read a very brief overview of the EDSAC from the Computer History Museum. Then learn about the EDSAC’s main memory, composed of mercury delay lines.

Check out the vital statistics for the EDSAC.

Read “Computing with the EDSAC (Part 1),” written about the programming the EDSAC, and “Computing with the EDSAC (Part 2),” written about debugging the EDSAC, both by mathematics writer Ivars Peterson.

Other Media

If you want to try the first stored-programming computer for yourself, you can download a copy of “The EDSAC Simulator.” The programs written for this simulator’s use include Pong, Invaders, and Etch-a-Sketch!