This supplement updates the first supplement to the original catalog of available PLATO systems instructional materials. The original catalog was published in April 1980 and the first supplement in November 1981. The lessons described in the current publication have been used in actual instructional situations or have had adequate testing to…

This supplement updates the original catalog of available PLATO system instructional materials which was published in April 1980. The lessons described have been used in actual instructional situations, or have had adequate testing to guarantee that the files are in working order. Printed directly from the CERL online catalog, "unicat,"…

This comprehensive catalog of available instructional materials for use with the PLATO system lists completed lessons which have been used in actual instructional situations or have had adequate testing to ensure that the files are in working order. Printed directly from the CERL online catalog, "uicat," the information provided for each…

The search for a satisfactory computer graphics input system led to this version of an analog sheet encoder which is transparent and requires no special probes. The goal of the research was to provide high resolution touch input capabilities for an experimental minicomputer based intelligent terminal system. The technique explored is compatible…