Graduate Thesis Or Dissertation
 

The GALAXY memory system

Pubblico Deposited

Contenuto scaricabile

Scarica il pdf
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/0r967814g

Descriptions

Attribute NameValues
Creator
Abstract
  • The GALAXY computer is a large, high speed, general purpose, digital computer intended to be used for solving scientific problems. It requires a random access memory system of 16,384 words of 59 bits each with a cycle time of one microsecond or less. A memory system capable of meeting these requirements has been designed for ferrite core storage elements and transistor active elements. It consists of four sections of 4,096 words each, with the initial installation consisting of two sections. Each section has its own associated current drivers and sense amplifiers while the memory register, decode circuits, and timing unit are used in common by the whole system. An experimental investigation of the memory system gave evidence that the requirements could be met by using presently available commercial components. A linear selection system was selected and investigated by using a 64 core word line and a 4,096 sense line to simulate a core stack. The experimental results showed that a minimum cycle time of 700 nanoseconds could be obtained. The results of an investigation of the system com ponents were used to select the type of cores and plane configuration. Ferroxcube type 6F2 cores were used with a word line configuration of two turns per core and a sense line configuration of one turn per core. Distri buted capacitance was added to the sense line to achieve a purely resistive characteristic impedance and thus sub stantially reduce the post-write disturb voltage. The investigation and design of the associated elec tronic circuits are also discussed.
Resource Type
Date Available
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Dichiarazione dei diritti
Publisher
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi using ScandAll PRO 1.8.1 on a Fi-6670 in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
Replaces

Le relazioni

Parents:

This work has no parents.

In Collection:

Elementi

Thumbnail Titolo Data caricata Visibilità Azioni
file details LooneyJames1963.pdf 2017-10-20 Pubblico Scaricare