Digital data processing system having an I/O means using unique address providing and access priority control techniques

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4455602
SERIAL NO

06266402

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A data processing system having a flexible internal structure, protected from and effectively invisible to users, with multilevel control and stack mechanisms and capability of performing multiple, concurrent operations, and providing a flexible, simplified interface to users. The system is internally comprised of a plurality of separate, independent processors, each having a separate microinstruction control and at least one separate, independent port to a central communications and memory node. The communications and memory node is an independent processor having separate, independent microinstruction control and comprised of a plurality of independently operating, microinstruction controlled processors capable of performing multiple, concurrent memory and communications operations. Addressing mechanisms allow permanent, unique indentification of information as objects and an extremely large address space accessible and common to all such systems. Addresses are independent of system physical configuration. Information is identified to bit granular level and to information type and format. Protection mechanisms provide variable access rights associated with individual bodies of information. User language instructions are transformed into dialect coded, uniform, intermediate level instructions to provide equal facility of execution for all user languages. Operands are referred to by uniform format names which are transformed, by internal mechanisms transparent to users, into addresses.

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Patent Owner(s)

  • DATA GENERAL CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baxter, III Ward Carlisle, MA 1 112
Coder, William N Raleigh, NC 2 124
Haeffele, Steven M Cary, NC 6 213

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