Remote Plotter Control System.
Abstract
A digital plotter is controlled via a teletypewriter channel of a general purpose computer. A programmable plotter controller (microprocessor) is interposed between the teletypewriter output of the computer and the teletypewriter. In normal operation, the microprocessor acts as a buffer in the computer output line to the teletypewriter. However, upon receiving a special 'plotter on' command, the microprocessor decodes and converts the input teletypewriter characters into plotter commands and places the appropriate signals on the microprocessor data output lines. An interface means converts the signals to the proper logic level for use by the plotter and transmits the signals to the plotter. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 21, 1977
- Accession Number
- ADD004460
Entities
People
- John C. Moore
Organizations
- United States Department of the Navy