The different technologies applicable to computer networks serving limited geographic areas, e.g., a single campus, factory, or office complex, are discussed in a number of short presentations made by active researchers and implementers in this field. Intensive discussion by participants in working sessions is reported for six topics: subnet…

While avoiding evaluation or specification of individual companies, computer time-sharing commercial contract agreements are analyzed. Price and non-price contract elements are analyzed according to 22 evaluation criteria: confidentiality measures assumed by the vendor; consultation services available; package programs and user routines; languages…

An introduction to the problems of variable-length message transmission in distributed loop computer networks, with a summary of previous accomplishments in the area, begins this technically-oriented document. An improved technique, overcoming some of the inadequacies in presently used techniques, is proposed together with a conceptual model of…

Although the indispensibility of access control mechanisms in data secure systems has been recognized, there is a need for more subtle protection and refined control mechanisms. This report describes context protection mechanisms which enable the same data unit to be protected differently in different contexts, the differences being determined by…

The Educational Computer User's Network at Battelle Columbus Laboratories is a cooperative computer center effort between a group of Ohio colleges, secondary schools, and a large research-oriented organization. This description of the program includes the historical background, program concept, data processing development, hardware and software,…

The significant accomplishments and events in computing at Dartmouth College during the period July 1, 1973 through June 30, 1976 are described in detail. The report is divided into six sections: (1) review of activities, (2) acquisition of equipment, (3) software development, (4) computer applications, (5) highlights of the first decade of the…