Jay Forrester

A computer pioneer.

Led the WhirlwindComputer? project at MIT, invented magnetic core memory, and was a mentor of KenOlsen?. Then went on to develop SystemDynamics, and a computer language to go with it. KentBeck uses some SystemDynamics-inspired feedback-loop diagrams in his XP books.

http://www.thocp.net/biographies/forrester_jay.html