Multics: An Ancestor of Unix

The Multicians web site presents the story of the Multics operating system for people interested in the system's history, especially Multicians. The site's goals are to

• preserve the technical ideas and advances of Multics so others don't need to reinvent them.
• record the history of Multics, its builders, and its users before we all forget.
• give credit where it's due for important innovations.
• remember some good times and good people.

The Multicians web site contains 460 HTML files (see the Site Map) comprising over 1,000,000 lines, 601 PDF files, and 459 graphic images. The site has benefited from the contributions of many authors. Contributions are invited: if you have a correction, fact, date, name, anecdote, or picture, please share it with Multicians everywhere by sending mail to the editor.

Harry Reed and Charles Anthony reached a major milestone on the

Multics simulator

on Saturday 08 November, 2014. Their

SIMH-based simulator

booted Multics MR 12.5, came to operator command level, entered admin mode, created a small PL/I program, compiled and executed it, and shut down.

Release 2.0 of the simulator is now available.

There have been multiple updates to Multics for the simulator: the latest version is

MR 12.6f, April 2017

. Anyone can try out a simulated Multics or install the simulator on their own computer.

Open Source for Multics

is hosted at MIT, courtesy of Bull HN. It is available "for any purpose and without fee" provided that the copyright notice and historical background are preserved in all copies.

from Hacker News https://ift.tt/364SMl9