Sure, but there seems to be somewhat of a gap between AT&T SVR4 release date (1989)[1] and the release of Solaris 2.0 (1992) [2], which was the first SVR4 based

Sure, but there seems to be somewhat of a gap between AT&T SVR4 release date (1989)[1] and the release of Solaris 2.0 (1992) [2], which was the first SVR4 based version - Solaris 1.0 was merely re-branded SunOS 4.x. SVR4.2 was not released until 1992 however[1]. Solaris may have been the SVR4 "reference platform" for SPARC hardware, but the other official hardware platform at release was the mainstream x86, which Solaris did not support until 2.1 in 1993. Also I have a bunch of SVR4 install floppy images here, and for some reason I don't believe it installs TCP/IP support by default. I should go back and check now. [1] http://www.unix.org/what_is_unix/history_timeline.html http://www.unix.org/what_is_unix/history_timeline.html [2] https://en.wikipedia.org/wiki/Solaris_(operating_system) https://en.wikipedia.org/wiki/Solaris_(operating_system)