Intelligent computer display terminal having EAROM memory

Details Intelligent computer display terminal having EAROM memory Intelligent computer display terminal having EAROM memory

1977-08-22

1979-01-30

Chapnick, Melvin B.

Boots, shoes, and leggings

G06F 304, G06F 314, G06F 1300

Patent

active

041375645

ABSTRACT:
A computer terminal for providing a visual display of linguistic characters in response to character data information from an external computer. The computer display terminal can be semipermanently configured in response to externally supplied configuration information. The terminal includes a microprocessor unit formed by a microprocessor, a ROM for instruction codes and a RAM for temporary data storage. A data communications channel interfaces with the microprocessor unit, receives the character information from the external computer, and provides such information to the microprocessing unit for storage in its RAM. A CRT or other display interfaces with the microprocessor unit and visually displays character information stored in the RAM. A keyboard or other input interfaces with the microprocessor unit and provides a means for inputting externally supplied terminal configuration information. An EAROM interfaces with the microprocessor unit and semipermanently stores configuration information received therefrom. The EAROM is an electrically alterable memory, is non-destructive at power off, and supplies its stored configuration information to the microprocessor unit upon demand. The microprocessor unit of the display terminal also interfaces with an external printer for providing hard copies, an external magnetic card reader for providing an additional input device, and an external magnetic tape unit for providing an additional input/output device.

REFERENCES:
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patent: 3748452 (1973-07-01), Ruben
patent: 3760375 (1973-09-01), Irwin et al.
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patent: 4019175 (1977-04-01), Nakao et al.
patent: 4039785 (1977-08-01), Ziemann
patent: 4058850 (1977-11-01), Sheikh
patent: 4064490 (1977-12-01), Nagel
"Finalists Selected in General Instrument EAROM Applications Circuit Design Contest" in Electronic Engineering Times, Jun. 13, 1977, pp. 32-35 and 64.

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