Documentation of the Coursewriter II Function FCALC is provided. The function is designed for use on the IBM 1500 instructional system and has three major applications: 1) comparison of a numeric expression in buffer 5 with a numeric expression in buffer 0; 2) comparison of an algebraic expression in buffer 5 with an algebraic expression in buffer…

Nine job control language (JCL) procedures for the Rapidly Extensible Language (REL) batch system are presented. The REL system itself is a total software system designed to facilitate communication with the computer in very high level languages. Its goal is an interactive time-shared system, but for a variety of reasons it has been desirable to…

A series of six functions and a station command have been designed to enable Coursewriter II authors to use the plotting capability of the IBM instructional system in presenting course material. This capability has been augmented to include the ability to graph mathematical functions or other data on the 1510 terminal. Documentation of the Plot…

This study concerned conceptual difficulties of college students learning programming and ways the teacher can simplify the process. An analysis of general strategies used in solving problems involving loops is given, with four types of hierarchical strategy categorized. Students had difficulty transforming their algebraic descriptions into…

Three outstanding features of the Rapidly Extensible Language (REL) System are discussed. REL itself is an integrated software system designed to facilitate conversational interaction with the computer, especially by those working with dynamic, highly interrelated data. The system's main parts are: 1) the operating system, which manages the…

A description of the Program Assembly and Monitored Execution for Learning Applications (PAMELA) is presented. It is intended for instructors who propose to use the system and for programers who wish to modify it. PAMELA is an interactive system designed to teach the operating principles of the IBM System/360 digital computer at the machine…

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…