Develops Volterra model for spread of information in group analytically and by simulation and compares characteristics of both methods. Topics of modeling, equilibrium, linearization, stability, error analysis, and parameter identification are incorporated in obtaining the solutions. (SK)

Describes a flexible, multichannel, highly accurate, digital data acquisition system for use with a microcomputer. Includes a description of instrumentation for computer data acquisition, data acquisition systems, software, uses in the curriculum, library interaction and action, and use in a mechanical engineering laboratory. (DS)