JPS57150055A - Electronic desk calculator - Google Patents

Electronic desk calculator

Info

Publication number
JPS57150055A
JPS57150055A JP3452681A JP3452681A JPS57150055A JP S57150055 A JPS57150055 A JP S57150055A JP 3452681 A JP3452681 A JP 3452681A JP 3452681 A JP3452681 A JP 3452681A JP S57150055 A JPS57150055 A JP S57150055A
Authority
JP
Japan
Prior art keywords
register
data
gate
signal
outputs
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.)
Pending
Application number
JP3452681A
Other languages
Japanese (ja)
Inventor
Shinichi Nakada
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Priority to JP3452681A priority Critical patent/JPS57150055A/en
Publication of JPS57150055A publication Critical patent/JPS57150055A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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)
  • Computing Systems (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Calculators And Similar Devices (AREA)

Abstract

PURPOSE:To read out the contents of a 2nd register only by depressing a register correction key by installing a 1st register storing data so as to display them according to a specified format and the 2nd register storing data so as to be able to search the internal data most frequently. CONSTITUTION:A register DR1 stores data to be displayed according to a specified mode and a register DR2 stores the maximum data which are recognized most frequently, e.g. data of a mode displaying 7 places of decimals. A signal terminal DC of a CPU outputs ''1'' only when a CE key on a keyboard KB is depressed. Simultaneously with the supply of outputs from the registers DR1, DR2 to AND gates G1, G2, a signal inverted from the DC signal by an inverter I1 is supplied to the AND gate G1 and the DC signal is directly supplied to the AND gate G2. The outputs of the AND gates G1, G2 are supplied to a display device DSP through an OR gate G3. Thus, the gate G2 are opened during the period the CE key is continued to be depressed and the data of DR2 are displayed on the display device DSP.
JP3452681A 1981-03-12 1981-03-12 Electronic desk calculator Pending JPS57150055A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3452681A JPS57150055A (en) 1981-03-12 1981-03-12 Electronic desk calculator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3452681A JPS57150055A (en) 1981-03-12 1981-03-12 Electronic desk calculator

Publications (1)

Publication Number Publication Date
JPS57150055A true JPS57150055A (en) 1982-09-16

Family

ID=12416711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3452681A Pending JPS57150055A (en) 1981-03-12 1981-03-12 Electronic desk calculator

Country Status (1)

Country Link
JP (1) JPS57150055A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002036983A (en) * 2000-05-19 2002-02-06 Sumitomo Chem Co Ltd Bumper reinforcing member

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002036983A (en) * 2000-05-19 2002-02-06 Sumitomo Chem Co Ltd Bumper reinforcing member

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