Daniel D. McCracken
Pages 73-74
A recent report from the National Research Council contains a detailed profile of doctoral level scientists and engineers, as well as doctorates in the humanities [1]. This paper summarizes those portions of the report that pertain …
Richard E. Fairley
Pages 77-78
A mathematical study of three approaches for defining nested arrays in APL is presented. Theorems exhibiting the relationships between the definitional systems are given and illustrated through graph representations. One of the …
W. E. Gull, M. A. Jenkins
Pages 79-96
The elimination of redundant computations and the moving of invariant computations out of loops are often done separately, with invariants moved outward loop by loop. We propose to do both at once and to move each expression
…
E. Morel, C. Renvoise
Pages 96-103
M. R. Anderson, M. G. Anderson
Page 104
Thoth is a real-time operating system which is designed to be portable over a large set of machines. It is currently running on two minicomputers with quite different architectures. Both the system and application programs which …
David R. Cheriton, Michael A. Malcolm, Lawrence S. Melen, Gary R. Sager
Pages 105-115
Synchronization of concurrent processes requires controlling the relative ordering of events in the processes. A new synchronization mechanism is proposed, using abstract objects called eventcounts and sequencers, that allows …
David P. Reed, Rajendra K. Kanodia
Pages 115-123
A computer system uses several serial files. The files reside on a direct-access storage device in which storage space is limited. Records are added to the files either by jobs in batch processing mode, or by on-line transactions …
Haim Mendelson, Joseph S. Pliskin, Uri Yechiali
Pages 124-130
Robert L. Ashenhurst
Page 138
This brief report summarizes the results of the third and fourth annual surveys on the production and employment of Ph.D.'s in computer science. Responses were solicited from department chairmen, and aggregated for presentation …
Orrin E. Taulbee, S. D. Conte
Pages 75-76
