Pedagog II Realization.

Abstract

A small microprogrammable computer, designed in a previous effort, was evaluated to determine its condition. Found nonoperational, it was analyzed to determine areas that required design changes. Several modules of the system were redesigned. The system was tested to insure proper operation. A new control panel and cabinet were designed and constructed. The computer backplane was installed in a cabinet. Existing power supplies were adapted for use, and another was designed and added. A bus interface, designed in a previous effort to allow expansion of memory, was fabricated and tested. It was found nonoperational. The machine is microprogrammable and has a 256-word, random access memory. Microcode was written to allow the machine to emulate the 36 basic instructions of the Digital Equipment Corporation (DEC) PDP-8. All major register transfers can be seen on the front panel. The machine may be taken to the classroom for instruction or demonstrations in basic microprogramming. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1979
Accession Number
ADA080394

Entities

People

  • James Stephen Sheehan

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Arithmetic Units
  • Circuit Breakers
  • Computer Programming
  • Computers
  • Control Panels
  • Diagrams
  • Electrical Engineering
  • Engineering
  • Instruction Set Architecture
  • Integrated Circuits
  • Light Emitting Diodes
  • Metal Oxide Semiconductors
  • Microcode
  • Microprogramming
  • Power Supplies
  • Students

Fields of Study

  • Physics

Readers

  • Computer Engineering
  • Parallel and Distributed Computing.
  • Software Engineering