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1. Research-UNIX-v6 Research-UNIX-v6 Public

   Research UNIX v6 by Dennis Richie and Ken Thompson

2. trs-xenix trs-xenix Public

   Forked from pski/trs-xenix

   The TRS-XENIX Project

   Assembly

3. 4.2BSD 4.2BSD Public

   Forked from dank101/4.2BSD

   Upload of the source of 4.2BSD taken from /usr/src

   C

4. 4.4BSD-Lite2 4.4BSD-Lite2 Public

   Forked from sergev/4.4BSD-Lite2

   4.4BSD Lite Release 2: last Unix operating system from Berkeley

   C

5. Solaris-2.5 Solaris-2.5 Public

   Forked from Arquivotheca/Solaris-2.5

   Source code for Sun Microsystems' Solaris 2.5

   C

6. legacy-free-x86 legacy-free-x86 Public

   Forked from penberg/legacy-free-x86

   OS development resources for legacy-free x86 hardware.