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Virginia Polytechnic Institute and State University

GE-PAC 4020/EAI 580 Hybrid Computing System

Abstract

dc:description.abstract

Hybrid computation is a discipline designed to reap benefits from the strengths of both digital and analog computation. This system welds the capabilities of a GE/PAC<sup>®M/sup> 4020 Process Computer and an EAI® 580 Analog/Hybrid Computing System by means of a special Hybrid Interface. The Hybrid Interface consists of five modules. First, there is the hybrid control module which mediates status and control information between the two computers, and the D to A converter module which provides analog voltages from digital information. Then, there is the analog scanner/controller. which switches voltages from the analog computer to the A to D converter, and the A to D converter itself. Finally, there is a logic interface which exchanges digital signals between the analog computer's logic module and the digital computer. The interface scheme allows either computer to act as the master control, and it provides for full interchange of a problem's parameters between the digital and analog regimes as a problem solution unfolds. The system is fast enough to study many large problems in real-time with good accuracy.

Degree

thesis:*
Name thesis:degree_name
Master of Science
Level thesis:degree_level
masters
Discipline thesis:degree_discipline
Electrical Engineering
Department dc:contributor.department
Electrical Engineering
Grantor dc:publisher
Virginia Polytechnic Institute and State University
Year dc:date.issued
1971

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Bomberger, Alan Joseph

Rights

dc:rights
Statement dc:rights
  • In Copyright
Language dc:language.iso
en

Identifiers

dc:identifier.*
Handle dc:identifier.uri
http://hdl.handle.net/10919/71069
OAI identifier oai:identifier
oai:vtechworks.lib.vt.edu:10919/71069

Chain of custody

source
Harvested from
Virginia Tech
Base URL
vtechworks.lib.vt.edu/oai/request
Last updated
2026-07-22
Source record
OAI-PMH GetRecord
related terms
citation

Bomberger, Alan Joseph. GE-PAC 4020/EAI 580 Hybrid Computing System. masters thesis, Virginia Polytechnic Institute and State University, 1971. http://hdl.handle.net/10919/71069