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The Newcastle Connection or UNIXes of the World Unite!

Lookup NU author(s): Emeritus Professor Lindsay MarshallORCiD, Professor Brian RandellORCiD



In this paper we describe a software subsystem that can be added to each of a set of physically interconnect UNIX or UNIX look-alike systems, so as to construct a distributed system which is functionally indistinguishable at both the user and the program level from a conventional single-processor UNIX system. The techniques used are applicable to a variety and multiplicity of both local and wide area networks, and enable all issues of inter-processor communication, network protocols, etc., to be hidden. A brief account is given of experience with such a distributed system, which is currently operational on a set of PDP11s connected by a Cambridge Ring. The final sections compare our scheme to various precursor schemes and discuss its potential relevance to other operating systems.

Publication metadata

Author(s): Brownbridge DR, Marshall LF, Randell B

Publication type: Report

Publication status: Published

Series Title: Computing Laboratory Technical Report Series

Year: 1982

Pages: 24

Report Number: 175

Institution: Computing Laboratory, University of Newcastle upon Tyne

Place Published: Newcastle upon Tyne