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JCTsay
參考資訊 (References)
qPhotograph Courtesy of … in Chronology of Computers (計算機演進年表中照片提供者)
nAbacus: The Computer Museum, Boston, MA
nSlide Rule: SINCO-AMNILOG No. 1530A
nPascalline: Courtesy of IBM Corporation
nJacquard´s Loom: Courtesy of IBM Corporation
nBabbage´s Difference engine: New York Public Library Picture Collection
nHollerith´s Tabulating Machine: Courtesy of IBM Corporation
nABC Computer: Courtesy of Dr. Atanasoff
nMARK I: Courtesy of IBM Corporation
nENIAC: United Press International Photo
nUNIVAC I: Hagley Museum and Library
nIBM 650: Courtesy of IBM Corporation
nIBM 1620: http://ed-thelen.org/comp-hist/BRL61-0536.jpg; Courtesy of IBM Corporation
nIBM 7090: Courtesy of IBM Corporation
nPDP-8: Courtesy of  DEC
nIBM System/360: Courtesy of IBM Corporation
nIBM System/370: Courtesy of IBM Corporation
nApple II: Courtesy of Apple Computer, Inc.
nIBM PC-XT: Courtesy of IBM Corporation