Boots – shoes – and leggings
Patent
1983-05-09
1985-07-02
Heckler, Thomas M.
Boots, shoes, and leggings
G06F 3023, G06F 3153
Patent
active
045272506
ABSTRACT:
An interchangeable keyboard application module is connected to a video monitor module in a computer terminal to provide sequences of processor instructions and a keyboard for performing a plurality of selectable applications. The video monitor module includes a CRT display, a serial I/O interface and a processor that processes characters received through the serial I/O interface for display on the CRT screen whether or not the application module is attached. The processor in the video monitor module detects the connection of the application module, and then selects its instructions from a memory in the application module first, to prompt the selection of a mode of operation for the terminal, and second to execute the selected mode of operation. The application module uses a plurality of keyboard overlays, each corresponding to a respective mode of operation. In a specific embodiment two of the modes of operation are programming applications related to programmable controllers.
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patent: 3573749 (1971-04-01), Smith et al.
patent: 3605285 (1971-09-01), Bendaniel et al.
patent: 3971925 (1976-07-01), Wenninger et al.
patent: 4107784 (1978-08-01), Van Bemmelen
patent: 4156928 (1979-05-01), Inose et al.
patent: 4202041 (1980-05-01), Kaplow et al.
patent: 4279021 (1981-07-01), See et al.
Brown Ronald A.
Galdun Daniel J.
Grants Valdis
Struger Odo J.
Allen-Bradley Company
Heckler Thomas M.
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