Thanks for correcting my error, Noel. Bob On 4/22/2013 1:34 PM, Noel Chiappa wrote: > > From: Bob Braden <braden at ISI.EDU> > > > Herewith is my contribution. > > Very interesting! One minor observation: > > > First, it was written in IBM assembly language, not in C. > > Actually, many of the other early implementations were in assembler.