JPS5578367A - Electronic desk calculator - Google Patents

Electronic desk calculator

Info

Publication number
JPS5578367A
JPS5578367A JP15253978A JP15253978A JPS5578367A JP S5578367 A JPS5578367 A JP S5578367A JP 15253978 A JP15253978 A JP 15253978A JP 15253978 A JP15253978 A JP 15253978A JP S5578367 A JPS5578367 A JP S5578367A
Authority
JP
Japan
Prior art keywords
memories
display
data
key operation
key
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
JP15253978A
Other languages
Japanese (ja)
Inventor
Koichi Kawai
Hiroshi Kadota
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 JP15253978A priority Critical patent/JPS5578367A/en
Publication of JPS5578367A publication Critical patent/JPS5578367A/en
Pending legal-status Critical Current

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  • Calculators And Similar Devices (AREA)

Abstract

PURPOSE: To perform effectively the operation for key operation input by providing a display means which can display the number of memories, which can be used newly, and displaying states of memories dependent upon key operation after key operation.
CONSTITUTION: Stacks for display, operation and mathematical expression are provided in the register or the data memory of memory part 3 of an electronic desk calculator having key input part 1, operation control part 2, data memory part 3 and display part 7, and data memory numbers are assigned to them respectively. The total number of data memories is stored in storage part 4 for the total number of data memories, and the number of using data memories is stored in storage part 5 for the number of using data memories, and respective outputs are applied to adder and subtractor 6. The number of memories which can be used newly is calculated by this adder and subtractor 6 and is displayed on display part 7 through control part 2, and the state of memory part 3 for key operation inputted to input part 1 after that and is displayed, thus executing effectively the operation dependent upon key operation.
COPYRIGHT: (C)1980,JPO&Japio
JP15253978A 1978-12-08 1978-12-08 Electronic desk calculator Pending JPS5578367A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15253978A JPS5578367A (en) 1978-12-08 1978-12-08 Electronic desk calculator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15253978A JPS5578367A (en) 1978-12-08 1978-12-08 Electronic desk calculator

Publications (1)

Publication Number Publication Date
JPS5578367A true JPS5578367A (en) 1980-06-12

Family

ID=15542651

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15253978A Pending JPS5578367A (en) 1978-12-08 1978-12-08 Electronic desk calculator

Country Status (1)

Country Link
JP (1) JPS5578367A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972487A (en) * 1982-10-19 1984-04-24 三洋電機株式会社 Display method
JPS59142670A (en) * 1983-02-04 1984-08-15 Fujitsu Ltd Memory capacity display system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972487A (en) * 1982-10-19 1984-04-24 三洋電機株式会社 Display method
JPS59142670A (en) * 1983-02-04 1984-08-15 Fujitsu Ltd Memory capacity display system
JPS6330662B2 (en) * 1983-02-04 1988-06-20 Fujitsu Ltd

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