The D.P.F.D.: a double precision (18 digits) floating decimal setup for IBM's Model II CPC.

J. P. Wong, Jr.

ResearchPublished 1954

A description of a three address, double precision (18 digits) floating decimal computing system, called the D.P.F.D., for IBM's Model II Card Programmed Calculator. A complete set of diagrams for wiring a set of IBM plug panels for this system is considered.

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Wong, J. P., Jr., The D.P.F.D.: a double precision (18 digits) floating decimal setup for IBM's Model II CPC. Santa Monica, CA: RAND Corporation, 1954. https://www.rand.org/pubs/research_memoranda/RM1251.html.
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