Communications of the ACM

ACM president's letter: a day in New York

Peter J. Denning
Pages 1-2

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One more time — how to update a master file

Barry Dwyer
Pages 3-8

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An optimal algorithm for mutual exclusion in computer networks

Glenn Ricart, Ashok K. Agrawala
Pages 9-17

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A sublinear additive sieve for finding prime number

Paul Pritchard
Pages 18-23

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Information systems and organizational change

Peter G. W. Keen
Pages 24-33

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ACM forum

Robert L. Ashenhurst
Pages 40-41

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