PLATO IV: First Year Report, Computerized Training System, Project ABACUS.

This report covers the PLATO IV activities during calendar year 1973 at the Computerized Training System. The work reported herein is supported by a program sponsored by the Advanced Research Projects Agency (ARPA) to evaluate the PLATO IV system for use in training, oriented to the needs of the Armed Services. The report presents a synopsis of each lesson written, a discussion of support routines for these lessons, a summary of demonstrations of PLATO IV given by the Computerized Training System (CTS), and the future PLATO IV plans of CTS. (Author)