FR1283107A - Electronic calculator - Google Patents

Electronic calculator

Info

Publication number
FR1283107A
FR1283107A FR855044A FR855044A FR1283107A FR 1283107 A FR1283107 A FR 1283107A FR 855044 A FR855044 A FR 855044A FR 855044 A FR855044 A FR 855044A FR 1283107 A FR1283107 A FR 1283107A
Authority
FR
France
Prior art keywords
electronic calculator
calculator
electronic
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
FR855044A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority to FR855044A priority Critical patent/FR1283107A/en
Application granted granted Critical
Publication of FR1283107A publication Critical patent/FR1283107A/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.
    • G06F7/4912—Adding; Subtracting
    • 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
    • G06F7/50—Adding; Subtracting
    • G06F7/504—Adding; Subtracting in bit-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
    • G06F2207/4919—Using excess-3 code, i.e. natural BCD + offset of 3, rendering the code symmetrical within the series of 16 possible 4 bit values

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • General Engineering & Computer Science (AREA)
FR855044A 1960-03-12 1961-03-09 Electronic calculator Expired FR1283107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR855044A FR1283107A (en) 1960-03-12 1961-03-09 Electronic calculator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL249357 1960-03-12
FR855044A FR1283107A (en) 1960-03-12 1961-03-09 Electronic calculator

Publications (1)

Publication Number Publication Date
FR1283107A true FR1283107A (en) 1962-01-27

Family

ID=26189599

Family Applications (1)

Application Number Title Priority Date Filing Date
FR855044A Expired FR1283107A (en) 1960-03-12 1961-03-09 Electronic calculator

Country Status (1)

Country Link
FR (1) FR1283107A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0310701A1 (en) * 1986-09-30 1989-04-12 Bull HN Information Systems Inc. BCD arithmetic using binary arithmetic and logical operations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0310701A1 (en) * 1986-09-30 1989-04-12 Bull HN Information Systems Inc. BCD arithmetic using binary arithmetic and logical operations

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