From January 8-13, 1951 the Paris symposium, Les Machines á calculer et la pensée humaine (Calculating Machines and Human Thought) took place at l'Institut Blaise Pascal. Unlike the other early computer conferences, no demonstration of a stored-program electronic computer occurred. Louis Couffignal demonstrated the prototype of his non-stored-program machine.
Hook & Norman, Origins of Cyberspace (2002) no. 526.