Boots – shoes – and leggings
Patent
1977-02-16
1978-07-25
Nusbaum, Mark E.
Boots, shoes, and leggings
G06F 920, G06F 918
Patent
active
041033302
ABSTRACT:
A data processing apparatus for processing digital data in accordance with a plurality of predetermined tasks of preassigned priority values and identified by a respective plurality of devices connected to the data processing apparatus. Each device is capable of generating the respective task request signal when requiring service by the data processing apparatus. The data processing apparatus includes a first memory for storing a plurality of executable instructions, a second memory for storing addresses of locations in the first memory, a priority determining device responsive to the task request signals for generating a control signal indicative of the task request signal having the highest current priority value, and an addressing device responsive to the control signal for providing an address to the second memory, the addressed location in the second memory containing the next address of the first memory to be accessed for continuation of the processing of the requesting task and thus servicing of the respective device, wherein said next address is a part of an executed instruction.
REFERENCES:
patent: 3568157 (1971-03-01), Downing et al.
patent: 3582896 (1971-06-01), Silber
patent: 3634883 (1972-01-01), Kreidermacher
patent: 3766532 (1973-10-01), Liebel
patent: 3905025 (1975-09-01), Davis et al.
Nusbaum Mark E.
Smith Barry Paul
Xerox Corporation
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