SDF VINTAGE SYSTEMS
===================

SDF's vintage-system catalog includes TOPS-20, TOPS-10, ITS, Multics,
VMS, and historical UNIX systems. Some machines are physical; others
are simulated. Many offer guest access, while longer-term use can
require an account.

The documented entry point is:

ssh menu@tty.sdf.org

This opens the vintage-system menu. Individual systems have their own
login instructions. The vintage-system menu is separate from SDF's
regular shell service.

SOURCES (for reference)
https://wiki.sdf.org/doku.php?id=vintage_systems:start