GB1401265A - Variable function programmed calculator - Google Patents

Variable function programmed calculator

Info

Publication number
GB1401265A
GB1401265A GB4462674A GB4462674A GB1401265A GB 1401265 A GB1401265 A GB 1401265A GB 4462674 A GB4462674 A GB 4462674A GB 4462674 A GB4462674 A GB 4462674A GB 1401265 A GB1401265 A GB 1401265A
Authority
GB
United Kingdom
Prior art keywords
signals
digit
calculator
keyboard
timing
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
GB4462674A
Other languages
English (en)
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
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 Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of GB1401265A publication Critical patent/GB1401265A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Calculators And Similar Devices (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Digital Computer Display Output (AREA)
  • Logic Circuits (AREA)
  • Executing Machine-Instructions (AREA)
  • Electric Clocks (AREA)
GB4462674A 1971-07-19 1972-06-27 Variable function programmed calculator Expired GB1401265A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16356571A 1971-07-19 1971-07-19

Publications (1)

Publication Number Publication Date
GB1401265A true GB1401265A (en) 1975-07-16

Family

ID=22590581

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4462674A Expired GB1401265A (en) 1971-07-19 1972-06-27 Variable function programmed calculator
GB3006872A Expired GB1401204A (en) 1971-07-19 1972-06-27 Variable function programmed calculator

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3006872A Expired GB1401204A (en) 1971-07-19 1972-06-27 Variable function programmed calculator

Country Status (5)

Country Link
JP (4) JPS5732375B1 (enrdf_load_stackoverflow)
DE (2) DE2235430A1 (enrdf_load_stackoverflow)
FR (1) FR2146368B1 (enrdf_load_stackoverflow)
GB (2) GB1401265A (enrdf_load_stackoverflow)
IT (1) IT965091B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4499807A (en) * 1980-09-05 1985-02-19 Casio Computer Co., Ltd. Key data entry system for an electronic musical instrument

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5173856A (en) * 1974-11-19 1976-06-26 Texas Instruments Inc Hyojisochito kiiboodo no sosashutsuryokunikanshi tasunokoodokumiawaseojusuru denshikeisanki aruiha deijitarushorikichitsupu
JPS5940778U (ja) * 1982-09-09 1984-03-15 富士電機株式会社 冷気循環形オ−プンシヨ−ケ−ス
JPS6270527U (enrdf_load_stackoverflow) * 1985-10-23 1987-05-06
JPH01166884U (enrdf_load_stackoverflow) * 1988-04-28 1989-11-22

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1030069B (de) * 1955-08-26 1958-05-14 IBM Deutschland Internationale Büro-Maschinen Gesellschaft m.b.H., Sindeliingen· (Württ.) Speichertastatur
US2989729A (en) * 1958-12-10 1961-06-20 Burroughs Corp Keyboard checking apparatus
DE1183130B (de) * 1963-09-12 1964-12-10 Telefunken Patent Anordnung zur Auslesung und dezimalen Anzeige eines in einem mehrdekadigen Zaehler enthaltenen Ergebnisses
US3462742A (en) * 1966-12-21 1969-08-19 Rca Corp Computer system adapted to be constructed of large integrated circuit arrays
US3566153A (en) * 1969-04-30 1971-02-23 Texas Instruments Inc Programmable sequential logic

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4499807A (en) * 1980-09-05 1985-02-19 Casio Computer Co., Ltd. Key data entry system for an electronic musical instrument

Also Published As

Publication number Publication date
FR2146368B1 (enrdf_load_stackoverflow) 1973-07-13
JPS5732375B1 (enrdf_load_stackoverflow) 1982-07-10
JPH0241062B2 (enrdf_load_stackoverflow) 1990-09-14
JPH01140264A (ja) 1989-06-01
IT965091B (it) 1974-01-31
DE2265696C2 (de) 1984-09-13
FR2146368A1 (enrdf_load_stackoverflow) 1973-03-02
JPS6229832B2 (enrdf_load_stackoverflow) 1987-06-29
JPS595937B2 (ja) 1984-02-08
JPS5727357A (en) 1982-02-13
GB1401204A (en) 1975-07-16
DE2235430A1 (de) 1973-02-01
JPS5731071A (en) 1982-02-19

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years