RFC 493 · UNKNOWN · 1973
MON · 15 JUN 2026
GRAPHICS PROTOCOL
Overview
RFC 493, “GRAPHICS PROTOCOL”, is an Unknown document published in April 1973 by J.C. Michener, I.W. Cotton, K.C. Kelley, D.E. Liddle, E. Meyer. It obsoletes RFC 292. The canonical text is published by the RFC Editor.
What “Unknown” means
The standards-track status of this early RFC was never formally classified.
Read this RFC
The canonical text of RFC 493 is hosted at rfc-editor.org. Available in TXT,PDF,HTML.
Relationships to other RFCs
Other RFCs from 1973
- RFC 492 Response to RFC 467
- RFC 494 Availability of MIX and MIXAL in the Network
- RFC 491 What is "Free"?
- RFC 495 Telnet Protocol specifications
- RFC 490 Surrogate RJS for UCLA-CCN
- RFC 496 TNLS quick reference card is available
- RFC 489 Comment on resynchronization of connection status proposal
- RFC 497 Traffic Statistics