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q樹根
n專家、前輩:Napier; von Neumann; Pascal; Jacquard; Hollerith; Wilkes; Boole; Leibniz; Machuly; Eckert; Babbage;  Turing; . . .
q家譜 (1945-1975)
nIBM; PDP; CDC; RCA; Honeywell; UNIVAC; NOVA; . . .