CH374226A - Tastengesteuerte Büro-Rechenmaschine - Google Patents

Tastengesteuerte Büro-Rechenmaschine

Info

Publication number
CH374226A
CH374226A CH5025457A CH5025457A CH374226A CH 374226 A CH374226 A CH 374226A CH 5025457 A CH5025457 A CH 5025457A CH 5025457 A CH5025457 A CH 5025457A CH 374226 A CH374226 A CH 374226A
Authority
CH
Switzerland
Prior art keywords
sep
tube
key
contact
keys
Prior art date
Application number
CH5025457A
Other languages
German (de)
English (en)
Inventor
Kitz Norbert
Watkins Sparrow Vernon
Milburn Robert
Frederick Webb Christopher
Original Assignee
Bell Punch 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
Priority claimed from GB2738356A external-priority patent/GB868753A/en
Application filed by Bell Punch Co Ltd filed Critical Bell Punch Co Ltd
Publication of CH374226A publication Critical patent/CH374226A/de

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F7/4981—Adding; Subtracting
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C7/00—Input mechanisms
    • G06C7/02—Keyboards
    • G06C7/06—Keyboards with one set of keys for each denomination
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F7/46—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using electromechanical counter-type accumulators
    • G06F7/461—Adding; subtracting
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F7/4985—Multiplying; Dividing by successive additions or subtractions

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)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Input From Keyboards Or The Like (AREA)
CH5025457A 1956-09-06 1957-09-06 Tastengesteuerte Büro-Rechenmaschine CH374226A (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB2738356A GB868753A (en) 1956-09-06 1956-09-06 Improvements in or relating to calculating machines
GB3579756 1956-11-22
GB2110557 1957-07-03

Publications (1)

Publication Number Publication Date
CH374226A true CH374226A (de) 1963-12-31

Family

ID=27257978

Family Applications (5)

Application Number Title Priority Date Filing Date
CH5025457A CH374226A (de) 1956-09-06 1957-09-06 Tastengesteuerte Büro-Rechenmaschine
CH5025357A CH374225A (de) 1956-09-06 1957-09-06 Rechenmaschine
CH5025557A CH374227A (de) 1956-09-06 1957-09-06 Rechenmaschine
CH5025257A CH374224A (de) 1956-09-06 1957-09-06 Tischrechenmaschine
CH5025157A CH374223A (de) 1956-09-06 1957-09-06 Tischrechenmaschine

Family Applications After (4)

Application Number Title Priority Date Filing Date
CH5025357A CH374225A (de) 1956-09-06 1957-09-06 Rechenmaschine
CH5025557A CH374227A (de) 1956-09-06 1957-09-06 Rechenmaschine
CH5025257A CH374224A (de) 1956-09-06 1957-09-06 Tischrechenmaschine
CH5025157A CH374223A (de) 1956-09-06 1957-09-06 Tischrechenmaschine

Country Status (2)

Country Link
CH (5) CH374226A (da)
DK (1) DK105892C (da)

Also Published As

Publication number Publication date
CH374225A (de) 1963-12-31
CH374224A (de) 1963-12-31
CH374223A (de) 1963-12-31
DK105892C (da) 1966-11-21
CH374227A (de) 1963-12-31

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