An analog/hybrid simulation of a Digital Volt Meter (DVM) and an incremental analog-to-digital (A-D) converter are presented. An analog simulation of planar frames is also presented. (MLH)

An overview of recent developments in the theory of observers is presented, together with a simple design method that casts the problem in the form of a full order observer. Examples of observer performance are presented which are representative and suitable as demonstrations on small analog or hybrid computers. (Author/MH)

The simulation of a sampled-data system is described that uses a full parallel hybrid computer. The sampled data system simulated illustrates the proportional-integral-derivative (PID) discrete control of a continuous second-order process representing a stirred-tank. The stirred-tank is simulated using continuous analog components, while PID…

Developed to identify and qualitatively assess computer system evaluation techniques for use during acquisition of general purpose computer systems, this document presents several criteria for comparison and selection. An introduction discusses the automatic data processing (ADP) acquisition process and the need to plan for uncertainty through…

The development of a mathematics model to simulate small animal populations is described. Assumptions of the population model and options in the program are discussed. (MK)

A computer project in the area of equivalent viscous damping is described. The concept of equivalent viscous damping is applied to a single-degree-of-freedom system with velocity-squared damping. Comparison of the analytical results with an analog computer solution shows that the concept gives accurate results for the amplitude and phase of the…

Describes some ways computers can help students develop thinking skills in the social studies. Emphasizes the use of data bases, simulations, and tutorials to teach thinking skills. Questions whether computers can do a better job of teaching students to think and reason than alternative methods. (RKM)

An electronic laboratory station was designed for student use in learning electronic instrumentation and measurement by means of the computer-guided experimentation (CGE) system. The station features rack-mounted electronic laboratory equipment on a laboratory table adjacent to a PLATO IV terminal. An integrated logic system behind the laboratory…