Editing UNIX System V (section)

=== Availability during the 1990s on x86 platforms ===
[[File:OpenSolaris 2009.06 screenshot.png|thumb|A [[GNOME]]-based [[OpenSolaris]] desktop, OpenSolaris was one of the SVR4 varieties available for x86 platforms]]
In the 1980s and 1990s, a variety of SVR4 versions of Unix were available commercially for the x86 PC platform. However, the market for commercial Unix on PCs declined after [[Linux]] and BSD became widely available. In late 1994, [[Eric S. Raymond]] discontinued his ''PC-clone UNIX Software Buyer's Guide'' on [[USENET]], stating, "The reason I am dropping this is that I run Linux now, and I no longer find the SVr4 market interesting or significant."<ref>{{cite web|url=http://www.catb.org/~esr/faqs/clone-unix-guide.txt|title=PC-clone UNIX Software Buyer's Guide|author=Eric S. Raymond|date=16 November 1994|access-date=3 February 2014}}</ref>

In 1998, a [[Halloween Documents|confidential memo]] at Microsoft stated, "Linux is on track to eventually own the x86 UNIX market", and further predicted, "I believe that Linux&nbsp;– moreso than [[Windows NT|NT]]&nbsp;– will be the biggest threat to SCO in the near future."<ref>{{cite web|url=http://www.catb.org/~esr/halloween/halloween1.html|title=Open Source Software: A (New?) Development Methodology|author=Vinod Valloppillil|date=11 August 1998|access-date=3 February 2014}}</ref>

An ''[[InfoWorld]]'' article from 2001 characterized SCO UnixWare as having a "bleak outlook" due to being "trounced" in the market by Linux and Solaris, and IDC predicted that SCO would "continue to see a shrinking share of the market".<ref name="2001_vital_signs">{{cite news|url=http://www.computerworld.com/article/2584450/operating-systems/vital-signs-for-unix.html|title=Vital Signs for Unix|author=Tom Yager|newspaper=[[Computerworld]]|date=19 November 2001|access-date=5 June 2015}}</ref>