Showing papers on "Application software published in 1973"

Associative memories and processors: An overview and selected bibliography

Abstract: A survey of associative processing, techniques is presented, together with a guide to the published literature in this field. Some familiarity with the basic concepts of associative-processing is assumed. The references have been divided into four groups dealing with architectural concepts, hardware implementation, software considerations, and application areas. The discussion of architectural concepts consists of a classification of associative devices into four major categories (fully parallel, bit-serial, word-serial, and block-oriented) and an enumeration of techniques for dealing with multiple responses and hardware faults. With respect to hardware implementation, considerations are given to the basic operations implemented, hardware elements used (e.g., cryoelectrics, magnetic elements, and semiconductors), and physical characteristics such as speed, size, and cost. The discussion of software aspects of associative devices deals with synthesis of algorithms, programming problems, and software simulation. The application areas discussed include solution of some mathematical systems, radar signal processing, information storage and retrieval, and performance of certain control functions in computer systems.

Digital Control Scheme for a Generating Unit

Abstract: Computer applications in power systems have tended to evolve at the supervisory levels in system operation. Controls at the generation levels remain primarily an analog domain. To make the entire system operation flexible it is essential that the control devices be compatible. This points towards the application of computers as dedicated direct digital controllers at the primary control levels. This paper describes the development of an integrated and compatible scheme for complete digital control of a generating unit. The overall concept and details of a physical model being built to test the proposed control scheme are given.

A high order language optimal execution processor Fast Intent Recognition System (FIRST)

Abstract: The history of digital computers represents a twofold development toward the common goal of harnessing “electronic energy” to solve human problems. On the one hand we have the hardware designers producing faster, cheaper, more versatile computers to execute larger, more complex programs. On the other hand we have the software designers generally producing faster, cheaper, and more versatile languages, compilers, operating systems, and application software with which to program these larger, more complex problems. It is only recently that timesharing and interactive systems have begun to bridge the hardware-software generation gap. This paper describes a system which is intended to eliminate the gap by providing a computer which directly executes a powerful language - APL - in a highly efficient manner. The programmer and machine communicate entirely in APL with a fully interactive timesharing operating system integral in the design. In particular this paper focuses on the execution aspects of the computer and relates results obtained by emulating the main processor to conventional computer approaches.

Computer-Aided Design of a Data-Acquisition System for Intense Electromagnetic Environments

Abstract: An application of the NET-2 network-analysis computer program to the design of a data-acquisition system is described. A successful attempt is made to reduce the system's susceptibility to a cable-excited electromagnetic impulse through semiautomated design of a bandpass filter. Useful attributes of computer programs for such an application are discussed.

Programmable Controllers-Today and Tomorrow

Abstract: This paper takes a look at programmable controllers, what they are, how they are used and how they differ from mini-computers. In addition to general applications, the author takes a quick look at the future developments to anticipate.

The Computer in BWR Operations - Present and Future

Abstract: The current General Electric Boiling Water Reactor process computer is a conventionally architectured, medium sized, monolithic system based upon the GE-PAC* 4010. The system performs scan, log, and alarm functions, as well as some rather complicated nuclear steam supply and turbine generator performance calculations. However, over the years, the G.E. system designers in San Jose have become aware of both the limitations of the monolithic architecture as applied to the rapidly growing nuclear applications as well as the recent tremendous advances in computer hardware technology. What has emerged is the concept of a distributed computer control system primarily designed for the G.E. BWR, but also ideally suited for other applications. Built around a high speed common data base memory, the distributed system yields a giant improvement in terms of overall computer system modularity, software simplicity, versatility, price/performance ratio, availability, and functional capability. The G.E. design is built around two major changes in philosophy in terms of applying process computers to an application: (1) Force the computer architecture to fit the man and the application, and (2) Increase the hardware content and complexity whenever it is consistent with reducing the software complexity and cost.

Computer-Aided Compensation Design for Discrete Data Systems

Abstract: A method is advanced for compensation design of discrete data systems which enables realization of both transient and steady-state requirements. The technique is carried out with the aid of a digital computer and extends to specification of more than two roots. Practical examples illustrate application of the method.