Differences

This shows you the differences between two versions of the page.

--- systems:usg2 [2023/05/21 17:15] – created segaloco
+++ systems:usg2 [2024/07/09 09:31] (current) – segaloco
@@ Line 1: / Line 1: @@
-====== USG PG-1C300 Issue 3  ======
+====== USG PG-1C300 Issue 2  ======
 **Release Date:** January, 1976\\
 **Released By:** UNIX Support Group\\
 **Source Code: ** None Available\\
-**Documentation: ** [[https://www.tuhs.org/Archive/Distributions/USDL/unix_program_description_jan_1976.pdf|UNIX Program Description]] is a description of the various routines in the Issue 2 kernel\\
+**Documentation: **[[http://www.bitsavers.org/pdf/att/unix/6th_Edition/UNIX_Programmers_Manual_197601.pdf|UNIX Programmer's Manual PG-1C300 Issue 2]] is the programmer's manual and [[https://www.tuhs.org/Archive/Distributions/USDL/unix_program_description_jan_1976.pdf|UNIX Program Description]] is a description of the various routines in the Issue 2 kernel\\
 UNIX Program Generic Issue 2, otherwise known as PG-1C300, is a version of the UNIX operating system issued by the UNIX Support Group in January of 1976. The Program Generic line was used as a standard, supported UNIX base on which to base other projects and supply a computing environment to a larger group of users than the Research group could support.
-Very little is known about this version.  Anecdotally, the init system is similar to that in Research UNIX.  The later [[systems:usg3|Issue 3]] system is partially documented in the MERT Release 0 manual.
+This version appears to be comparable to [[systems:6th_edition|Sixth Edition Unix]], albeit retaining some components from earlier Research versions and incorporating some new features that would show up in [[systems:7th_edition|Seventh Edition Unix]] and [[systems:pwb|PWB Unix]].  The later [[systems:usg3|Issue 3]] system is partially documented in the [[systems:mert0|MERT Release 0]] manual.