FR1092618A - Improvements to electronic addition circuits - Google Patents

Improvements to electronic addition circuits

Info

Publication number
FR1092618A
FR1092618A FR1092618DA FR1092618A FR 1092618 A FR1092618 A FR 1092618A FR 1092618D A FR1092618D A FR 1092618DA FR 1092618 A FR1092618 A FR 1092618A
Authority
FR
France
Prior art keywords
addition circuits
electronic addition
electronic
circuits
addition
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
Other languages
French (fr)
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.)
British Tabulating Machine Co Ltd
Original Assignee
British Tabulating Machine Co Ltd
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 British Tabulating Machine Co Ltd filed Critical British Tabulating Machine Co Ltd
Application granted granted Critical
Publication of FR1092618A publication Critical patent/FR1092618A/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.
    • G06F7/492—Computations with decimal numbers radix 12 or 20. using a binary weighted representation within each denomination
    • G06F7/493—Computations with decimal numbers radix 12 or 20. using a binary weighted representation within each denomination the representation being the natural binary coded representation, i.e. 8421-code
    • G06F7/494—Adding; Subtracting
    • G06F7/495—Adding; Subtracting in digit-serial fashion, i.e. having a single digit-handling circuit treating all denominations after each other
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F2207/491—Indexing scheme relating to groups G06F7/491 - G06F7/4917
    • G06F2207/4913—Sterling system, i.e. mixed radix with digit weights of 10-20-12

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)
  • Lock And Its Accessories (AREA)
  • Feedback Control In General (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
FR1092618D 1953-02-05 1953-11-12 Improvements to electronic addition circuits Expired FR1092618A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB325953A GB738605A (en) 1953-02-05 1953-02-05 Improvements in or relating to electronic adding circuits

Publications (1)

Publication Number Publication Date
FR1092618A true FR1092618A (en) 1955-04-25

Family

ID=9754956

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1092618D Expired FR1092618A (en) 1953-02-05 1953-11-12 Improvements to electronic addition circuits

Country Status (2)

Country Link
FR (1) FR1092618A (en)
GB (1) GB738605A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB799584A (en) * 1955-10-25 1958-08-13 Powers Samas Account Mach Ltd Improvements in or relating to electronic computing apparatus
US3201762A (en) * 1957-01-25 1965-08-17 Honeywell Inc Electrical data processing apparatus
BE566076A (en) * 1957-04-02
NL236117A (en) * 1958-02-14
US3019979A (en) * 1959-03-03 1962-02-06 Int Computers & Tabulators Ltd Electronic adding circuits

Also Published As

Publication number Publication date
GB738605A (en) 1955-10-19

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