Electronic calculator system having high order math capability

Details Electronic calculator system having high order math capability Electronic calculator system having high order math capability

1976-08-16

1981-11-03

Smith, Jerry

Boots, shoes, and leggings

364200, 364709, G06F 930, G06F 1502

Patent

active

042989493

ABSTRACT:
Disclosed is an electronic calculator system having an input for receiving data and command signals, a memory for storing inputted data and data to be outputted, an arithmetic unit for performing arithmetic operations on the data stored in the memory, a first read-only-memory for storing groups of instruction words for controlling the data stored within the memory and for controlling the arithmetic operations performed by the arithmetic unit, a second read-only-memory for storing a set of program codes, each program code being effective for addressing a selected group of instruction words and control circuitry for reading out the groups of instruction words corresponding to an addressed set of program codes.

REFERENCES:
patent: 3593313 (1971-07-01), Tomaszewski et al.
patent: 3760171 (1973-09-01), Wang et al.
patent: 3859636 (1975-01-01), Cook
patent: 3942156 (1976-03-01), Mock et al.
patent: 3953833 (1976-04-01), Shapiro
patent: 3971925 (1976-07-01), Wenninger et al.

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