FR2307310A1 - Calculatrice de poche a modules arithmetiques interchangeables - Google Patents

Calculatrice de poche a modules arithmetiques interchangeables

Info

Publication number
FR2307310A1
FR2307310A1 FR7609582A FR7609582A FR2307310A1 FR 2307310 A1 FR2307310 A1 FR 2307310A1 FR 7609582 A FR7609582 A FR 7609582A FR 7609582 A FR7609582 A FR 7609582A FR 2307310 A1 FR2307310 A1 FR 2307310A1
Authority
FR
France
Prior art keywords
interchangeable
pocket calculator
arithmetic modules
arithmetic
modules
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.)
Withdrawn
Application number
FR7609582A
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.)
National Semiconductor Corp
Original Assignee
National Semiconductor Corp
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 National Semiconductor Corp filed Critical National Semiconductor Corp
Publication of FR2307310A1 publication Critical patent/FR2307310A1/fr
Withdrawn legal-status Critical Current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
    • G06F15/0216—Constructional details or arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Calculators And Similar Devices (AREA)
FR7609582A 1975-04-07 1976-04-02 Calculatrice de poche a modules arithmetiques interchangeables Withdrawn FR2307310A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/565,807 US3978328A (en) 1975-04-07 1975-04-07 Pocket calculator

Publications (1)

Publication Number Publication Date
FR2307310A1 true FR2307310A1 (fr) 1976-11-05

Family

ID=24260181

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7609582A Withdrawn FR2307310A1 (fr) 1975-04-07 1976-04-02 Calculatrice de poche a modules arithmetiques interchangeables

Country Status (5)

Country Link
US (1) US3978328A (fr)
JP (1) JPS51123032A (fr)
CA (1) CA1048652A (fr)
DE (1) DE2614741A1 (fr)
FR (1) FR2307310A1 (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5932010Y2 (ja) * 1976-03-23 1984-09-08 オリンパス光学工業株式会社 電子計算機付テ−プレコ−ダ−
JPS5911301B2 (ja) * 1976-03-31 1984-03-14 株式会社東芝 映像特殊効果装置
US4060719A (en) * 1976-07-23 1977-11-29 Dalinowski Alfred A Computer for solving unknown parameters of geometrical figures
US4055757A (en) * 1976-08-27 1977-10-25 Hewlett-Packard Company Calculator apparatus with annuity switch for performing begin-and end-period annuity calculations
US4218760A (en) * 1976-09-13 1980-08-19 Lexicon Electronic dictionary with plug-in module intelligence
US4084242A (en) * 1976-11-10 1978-04-11 Pitney-Bowes, Inc. Electronic postage weighing scale
US4092527A (en) * 1977-01-31 1978-05-30 Texas Instruments Incorporated Calculator with interchangeable keyset
US4359222A (en) * 1978-10-30 1982-11-16 Smith Engineering Hand-held electronic game playing device with replaceable cartridges
US4279021A (en) * 1979-02-15 1981-07-14 Telxon Corporation Portable data entry apparatus including plural selectable functional configurations
USD264347S (en) 1979-03-26 1982-05-11 Lafrance Corporation Readily disassembled instrument housing
JPS55129826A (en) * 1979-03-28 1980-10-08 Canon Inc Input unit
US4333155A (en) * 1979-05-18 1982-06-01 Litton Business Systems, Inc. Calculator having a modular keyboard
FR2483657B1 (fr) * 1980-05-30 1986-11-21 Bull Sa Machine portable pour le calcul ou le traitement de l'information
FR2490364B1 (fr) * 1980-09-16 1987-10-16 Bull Sa Machine de bureau pour l'acquisition de donnees ou le traitement de l'information ayant un ecran cathodique ou similaire pour l'affichage
US4508402A (en) * 1981-02-27 1985-04-02 Sharp Kabushiki Kaisha Integrated circuit package and display panel
US4462708A (en) * 1981-04-09 1984-07-31 Kroy Inc. Automated tape lettering machine
USD273303S (en) 1981-06-26 1984-04-03 Sharp Corporation Electronic calculator
USD275769S (en) 1981-09-18 1984-10-02 Sharp Corporation Electronic calculator
USD275770S (en) 1981-09-18 1984-10-02 Sharp Corporation Electronic calculator
JPS58195838U (ja) * 1982-06-22 1983-12-26 郵政大臣 ポスタルスケ−ル
JPS5968072A (ja) * 1982-10-13 1984-04-17 Sharp Corp 機能変換用小形電子機器
US4545022A (en) * 1983-02-10 1985-10-01 Hughins James T Fractional calculator
USD306584S (en) 1987-02-10 1990-03-13 Safare-Crouzet Shipboard operations terminal used with digitized voice control-machine and communication system
FR2727537B3 (fr) * 1994-11-30 1996-12-27 Schneider Electric Sa Terminal de dialogue a clavier
US7390958B2 (en) * 2003-06-25 2008-06-24 Yamaha Corporation Method for teaching music
US7108172B2 (en) * 2004-06-10 2006-09-19 The Chamberlain Group, Inc. Display of operational instructions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3187321A (en) * 1961-05-11 1965-06-01 Bunker Ramo Operator-computer communication console
US3560964A (en) * 1968-12-31 1971-02-02 Philco Ford Corp Keyboard unit
US3839630A (en) * 1971-12-27 1974-10-01 Hewlett Packard Co Programmable calculator employing algebraic language
US3925779A (en) * 1974-07-10 1975-12-09 Suzanne Gerstenhaber Message communicator for handicapped persons

Also Published As

Publication number Publication date
DE2614741A1 (de) 1976-10-14
US3978328A (en) 1976-08-31
CA1048652A (fr) 1979-02-13
JPS51123032A (en) 1976-10-27

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Legal Events

Date Code Title Description
ST Notification of lapse