Communications of the ACM

ACM president's letter: a scientist's view of government control over scientific publication

Peter J. Denning
Pages 95-99

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A human/computer interface to accommodate user learning stages

Howard Mozeico
Pages 100-104

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Using electronic mail as a teaching tool

Lawrence A. Welsch
Pages 105-108

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Relational database: a practical foundation for productivity

E. F. Codd
Pages 109-117

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The ACM position on standardization of the Ada language

Patrick G. Skelly
Pages 118-120

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Scaling down Ada (or towards a standard Ada subset)

Henry F. Ledgard, Andrew Singer
Pages 121-125

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Linearizer: a heuristic algorithm for queueing network models of computing systems

K. Mani Chandy, Doug Neuse
Pages 126-134

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Balanced job bound analysis of queueing networks

John Zahorjan, Kenneth C. Sevcik, Derek L. Eager, Bruce Galler
Pages 134-141

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Analyzing queueing networks with simultaneous resource possession

Patricia A. Jacobson, Edward D. Lazowska
Pages 142-151

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ACM forum

Pages 158-162

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