DK117866B - Calculator keyboard. - Google Patents

Calculator keyboard.

Info

Publication number
DK117866B
DK117866B DK278462A DK278462A DK117866B DK 117866 B DK117866 B DK 117866B DK 278462 A DK278462 A DK 278462A DK 278462 A DK278462 A DK 278462A DK 117866 B DK117866 B DK 117866B
Authority
DK
Denmark
Prior art keywords
calculator keyboard
calculator
keyboard
Prior art date
Application number
DK278462A
Other languages
Danish (da)
Inventor
N Kitz
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
Application filed by Bell Punch Co Ltd filed Critical Bell Punch Co Ltd
Publication of DK117866B publication Critical patent/DK117866B/en

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
    • G06F7/4985—Multiplying; Dividing by successive additions or subtractions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
    • G09G3/06—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources
    • G09G3/10—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources using gas tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Digital Computer Display Output (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Punching Or Piercing (AREA)
DK278462A 1958-06-19 1962-06-21 Calculator keyboard. DK117866B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1965658A GB925161A (en) 1958-06-19 1958-06-19 Improvements in or relating to calculating machines

Publications (1)

Publication Number Publication Date
DK117866B true DK117866B (en) 1970-06-08

Family

ID=10132982

Family Applications (3)

Application Number Title Priority Date Filing Date
DK218559A DK109760C (en) 1958-06-19 1959-06-18 Calculator with several rows of keys, several counting means, one of which is connected to each row of keys, mentee transfer means between neighboring counting means and an impulse generator with several outputs.
DK278462A DK117866B (en) 1958-06-19 1962-06-21 Calculator keyboard.
DK278262A DK115958B (en) 1958-06-19 1962-06-21 Table calculator for the decimal system.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DK218559A DK109760C (en) 1958-06-19 1959-06-18 Calculator with several rows of keys, several counting means, one of which is connected to each row of keys, mentee transfer means between neighboring counting means and an impulse generator with several outputs.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DK278262A DK115958B (en) 1958-06-19 1962-06-21 Table calculator for the decimal system.

Country Status (8)

Country Link
BE (1) BE579813A (en)
CH (5) CH381279A (en)
DE (1) DE1287340B (en)
DK (3) DK109760C (en)
FR (1) FR1230745A (en)
GB (3) GB925161A (en)
NL (1) NL240341A (en)
SE (3) SE307600B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR887732A (en) * 1940-01-20 1943-11-22
NL83274C (en) * 1944-12-27
NL220560A (en) * 1956-09-06

Also Published As

Publication number Publication date
GB925163A (en) 1963-05-01
CH377559A (en) 1964-05-15
SE307600B (en) 1969-01-13
CH381279A (en) 1964-08-31
SE301734B (en) 1968-06-17
CH379807A (en) 1964-07-15
FR1230745A (en) 1960-09-19
DK109760C (en) 1968-06-24
GB925164A (en) 1963-05-01
BE579813A (en) 1959-10-16
GB925161A (en) 1963-05-01
CH384254A (en) 1964-11-15
SE303891B (en) 1968-09-09
NL240341A (en)
DE1287340B (en) 1969-01-16
CH381454A (en) 1964-08-31
DK115958B (en) 1969-11-24

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