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GB709409A - Electronic multiplying apparatus - Google Patents

Electronic multiplying apparatus

Info

Publication number
GB709409A
GB709409A GB18591/52A GB1859152A GB709409A GB 709409 A GB709409 A GB 709409A GB 18591/52 A GB18591/52 A GB 18591/52A GB 1859152 A GB1859152 A GB 1859152A GB 709409 A GB709409 A GB 709409A
Authority
GB
United Kingdom
Prior art keywords
june
function table
storage register
partial products
electronic multiplying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB18591/52A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eckert Mauchly Computer Corp
Original Assignee
Eckert Mauchly Computer Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eckert Mauchly Computer Corp filed Critical Eckert Mauchly Computer Corp
Publication of GB709409A publication Critical patent/GB709409A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/491—Computations with decimal numbers radix 12 or 20.
    • G06F7/498—Computations with decimal numbers radix 12 or 20. using counter-type accumulators
    • G06F7/4983—Multiplying; Dividing
    • G06F7/4988—Multiplying; Dividing by table look-up

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Design And Manufacture Of Integrated Circuits (AREA)
  • Executing Machine-Instructions (AREA)

Abstract

709,409. Digital electric calculating-apparatus. ECKERT-MAUCHLY COMPUTER CORPORATION. June 28, 1948 [June 26, 1947], No. 18591/52. Divided out of 709,407. Drawings to Specification. Class 106 (1) Electronic multiplying apparatus comprises a first number storage register, a second number storage register, a function table representing partial product values in a predetermined number system, apparatus applying the contents of the first and second storage registers to the function table to derive therefrom the appropriate partial products, and means for combining the resultant partial products. The detailed description is identical with that of Specification 709,407 but the claims differ. Specifications 709,408 and 709,410 also are referred to.
GB18591/52A 1947-06-26 1948-06-28 Electronic multiplying apparatus Expired GB709409A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US709409XA 1947-06-26 1947-06-26

Publications (1)

Publication Number Publication Date
GB709409A true GB709409A (en) 1954-05-26

Family

ID=22098275

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18591/52A Expired GB709409A (en) 1947-06-26 1948-06-28 Electronic multiplying apparatus

Country Status (1)

Country Link
GB (1) GB709409A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2948464A (en) * 1954-06-11 1960-08-09 Hobart Mfg Co Computing mechanism
US2979260A (en) * 1956-09-21 1961-04-11 Ibm Data transfer system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2948464A (en) * 1954-06-11 1960-08-09 Hobart Mfg Co Computing mechanism
US2979260A (en) * 1956-09-21 1961-04-11 Ibm Data transfer system

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