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IBM Automatic Sequence Controlled Calculator or Harvard Mark I
IBM Automatic Sequence Controlled Calculator or Harvard Mark I
Resource Typeimage
TitleIBM Automatic Sequence Controlled Calculator or Harvard Mark I
Coverage / Year1937
DescriptionConsidered to be the first digital computer, Howard Aiken's Automatic Sequence Controlled Calculator (the IBM ASCC) or Mark I, was developed between 1937-1944. When it was completed it had many functions: addition, subtraction, multiplication and division, plus logarithms and trigonometric functions. It had an accuracy of 23 decimal place numbers. It measured 51 feet long, 8 feet high and 2 feet wide and weighed over 5 tons. Today, the Mark I has been split up and divided between Harvard (Science Center), the Smithsonian Institute, and IBM (Historical Collection). Image taken August 8, 2002, Harvard Science Center, Cambridge, MA.
InterpretationFor further information refer to: "Howard Aiken: Portrait of a Computer Pioneer, " by Bernard Cohen (MIT Press, 1999). Also note its companion piece, "Makin' Numbers: Howard Aiken and the Computer, " edited by Bernard Cohen and Gregory with Welch (MIT Press 1999).
Lesson Plans / ThemesUsing a Calculator; Using a Computer to make a graph
Learning Standards13 Science, Technology and Society
Author or CreatorSierra-Perry, Martha, 1949-
SourceImage kindly donated by Ms. Martha Sierra-Perry, Champaign, IL
Subject / KeywordsComputers; Calculators; Technology; Automatic Sequence Controlled Calculator (ASCC); Harvard Mark I; International Business Machines (IBM)
Collection PublisherUIUC Digital Imaging & Media Technology Initiative
Further InformationFor any further information related to this record, please contact the Collection Publisher. See for more information about this project.
Rights Management Statement
Resource Identifierdimti0001
CONTENTdm file name2654519692002_aikencalc.jpg
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