Electronic calculator providing flexible constant utilization

Details Electronic calculator providing flexible constant utilization Electronic calculator providing flexible constant utilization

1986-12-22

1990-02-13

Chan, Eddie P.

Boots, shoes, and leggings

G06F 302, G06F 738

Patent

active

049012622

ABSTRACT:
Disclosed is an electronic computer comprising a keyboard having numerical keys and others, a read only memory (ROM) to store control programs, a random-access memory (RAM) equipped with registers for operation, a CPU to control these devices, wherein a constant register to store constants, an operator storage unit to store operators, and a flag to show whether an operator is positioned before or after a constant are provided in said RAM, and a setting key to set the entered constant and operator and a confirmation key to confirm the predetermined constant and operator are provided in said keyboard, thereby executing an operation preliminarily set in said RAM after processing the desired operation that has been entered.

REFERENCES:
patent: 4282514 (1981-08-01), Elkin et al.
patent: 4290121 (1981-09-01), Boone et al.
patent: 4473886 (1984-09-01), Rizk et al.
patent: 4519045 (1985-05-01), Caldwell et al.
patent: 4695983 (1987-09-01), Oda et al.
patent: 4718029 (1988-01-01), Morino et al.

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