Bell Telephone Laboratories

Dennis J Hunsberger

Thomas M Quinn

Charles E Nahabedian

James H VanOrnum

The disclosed microprocessor support system provides a total 'laboratory' environment for developing and testing application software as well as for debugging the microprocessor-based application machine itself. The microprocessor support system contains a time shared minicomputer equipped with a full set of peripherals which functions as the main or operating system. A data link connects this operating system with test equipment located at the site of the application machine. This test equipment consists of a field test unit which provides an interface between the application machine, a local keyboard terminal and the operating system such that an engineer at the site of the application machine has access through the field test unit to both the microprocessor-based application machine and the operating system with its sophisticated hardware and software resources to assist in developing and testing application software, as well as debugging the application machine itself.

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Fair Haven, NJ, United States of America

Dennis J Hunsberger