Hello, Around 1951, Welchman taught what is said to be the first course on digital computer in MIT's electrical engineer department. I am wondering if anyone on this list has more information or a pointer to more information regarding Welchman and this course. From Brian Randell, I already have a statement by Welchman that he taught the course. I have sent a query to the MIT Archives. I have sent a query to Joel Greenberg (via the Bletchly Park website -- a direct email address will be appreciated) who wrote the recent biography of Welchman and Ultra to see if he (Greenberg) has anything about this course in the documents he obtained from the Welchman family. I will also ask Bob Everett or Jay Forrester if they know anything about the course. Best regards, Dave -- home address: 12 Linden Rd., E. Sandwich, MA 02537 home ph=508-888-7655; cell ph = 503-757-3137 (often don't carry it) email address: dave@walden-family.com; website: <http://www.walden-family.com/bbn/>http://www.walden-family.com/