JPS5786965A - Electronic desk-top calculator - Google Patents

Electronic desk-top calculator

Info

Publication number
JPS5786965A
JPS5786965A JP16294180A JP16294180A JPS5786965A JP S5786965 A JPS5786965 A JP S5786965A JP 16294180 A JP16294180 A JP 16294180A JP 16294180 A JP16294180 A JP 16294180A JP S5786965 A JPS5786965 A JP S5786965A
Authority
JP
Japan
Prior art keywords
register
circuit
display
contents
arithmetic
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
JP16294180A
Other languages
Japanese (ja)
Inventor
Shohei Horii
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP16294180A priority Critical patent/JPS5786965A/en
Publication of JPS5786965A publication Critical patent/JPS5786965A/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 facilitate varification without increasing the scale of equipment by detecting the coincidence between the contents of an independent memory register and those of a display register and by displaying its result. CONSTITUTION:An arithmetic result by a key input circuit 1 is stored in a display register 2 and displayed by a display circuit 6. With the independent memory key of the circuit 1, the contents of the display register 2 and an independent memory register 3 are summed up by an arithmetic circuit 5 and the sum is stored in a register 3. For verification, the 2nd arithmetic is performed and when the arithmetic result is inputted to the register 2, the coincidence detection key of the circuit 1 is pushed to input the contents of the registers 2 and 3 to a coincidence detecting circuit 7, when the both are coincident with each other, flashes the contents of the register 2 through the display circuit 6 while error display is done in case of dissidence. Thus, the verification is performed easily without increasing the scale and cost of the equipment.
JP16294180A 1980-11-19 1980-11-19 Electronic desk-top calculator Pending JPS5786965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16294180A JPS5786965A (en) 1980-11-19 1980-11-19 Electronic desk-top calculator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16294180A JPS5786965A (en) 1980-11-19 1980-11-19 Electronic desk-top calculator

Publications (1)

Publication Number Publication Date
JPS5786965A true JPS5786965A (en) 1982-05-31

Family

ID=15764153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16294180A Pending JPS5786965A (en) 1980-11-19 1980-11-19 Electronic desk-top calculator

Country Status (1)

Country Link
JP (1) JPS5786965A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0715263A3 (en) * 1994-12-01 1996-08-28 Casio Computer Co Ltd Computer with a proof function
US6026449A (en) * 1995-02-14 2000-02-15 Casio Computer Co., Ltd. Computers with a proof function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0715263A3 (en) * 1994-12-01 1996-08-28 Casio Computer Co Ltd Computer with a proof function
US5870318A (en) * 1994-12-01 1999-02-09 Casio Computer Co., Ltd. Computers with a proof function
US6026449A (en) * 1995-02-14 2000-02-15 Casio Computer Co., Ltd. Computers with a proof function

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