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On 05/08/2009 05:52 PM, Richard Pieri wrote: > On May 8, 2009, at 10:10 AM, Jerry Feldman wrote: > =20 >> Go in today's data centers and see how big corporations use Linux. =20 >> Why would Red Hat and SuSE produce Enterprise verisons if it is not =20 >> a commercial >> =20 > > Red Hat and SuSE are products built on top of Linux. They are =20 > commercial. That does not make Linux commercial. > > Mac OS X is built on top of Mach and FreeBSD. It is commercial. That = =20 > does not make either Mach or FreeBSD commercial. > > Circa 1990, Linux products were not competition for SCO.=20 Linux did not exist before 1991. I think you need to define commercial. > Linux did =20 > not start to become a significant commercial player until around =20 > 1996. SCO's competition of the early 1990s took the form of Sun, =20 > Hewlett-Packard, IBM and Digital as the big names with lesser names =20 > like Data General, Sequent and Unisys. All hardware vendors. Venix =20 > was never really competition against SCO, never mind the big guys. =20 > Commercial, yes, but not competition. > > Thus I stand by my statement: SCO prospered through the 1990s because = > it was a commercially supported OS that was not locked to a particular = =20 > hardware vendor's products > =20 This is true, but it was also on very inexpensive hardware. It did have=20 too much competition, but what made them successful in the corporate=20 world was their world-wide support organization. > And I will add that a lot of why SCO failed as an OS is the disaster =20 > that was Project Monterey. Linux was on the rise and Intel failed to = > deliver Itanium anywhere near schedule. IBM, SCO, Intel and Sequent, = > had an OS -- a very cool OS by the way based on my experience with the = =20 > AIX 5L developer previews -- that nobody wanted and no hardware to run = =20 > it on. This lead to SCO divesting itself of everything except =20 > Tarentella and selling it all to Caldera. SCO changed its name to =20 > Tarentella and independently until 2005 when it was bought by Sun. =20 > That is the ultimate demise of the old SCO. > =20 Basically when we refer to oldSCO we refer to the Unix division, not=20 what ended up as Tarantela. There are probably a lot of reasons oldSCO=20 failed, but maybe Project Monterey which was primarily a PPC project.=20 But, by that time, Linux and BSD (Free, Net, Open) were gaining market=20 share as well as reputation. HP and Digital were supporting Linux back=20 in the mid-1990s. > What was Sequent doing there? Sequent was a pioneer in high-=20 > performance SMP and NUMA architectures including read-copy-update. > =20 Sequent certainly was the leader in NUMA, and it was SMP and NUMA that=20 were the 2 major "derivatives" that SCO was suing IBM over. The other=20 "derivative" was JFS, but IBM claims that Linux JFS comes from OS/2 not=20 AIX, but the case is on stay. > Meanwhile, Caldera changed its name to The SCO Group. IBM pronounced = > Project Monterey deceased, acquired Sequent, and began to focus on =20 > Linux. The SCO Group found itself without an OS and without the big-=20 > name partners that were expected to prop it up. The SCO Group's =20 > management decided to sue IBM for contributing code from Project =20 > Monterey to the Linux kernel. We all know how that is turning out. > =20 Actually, that is not the case. The Monterey aspect of the lawsuit was a = breach of contract and slander. Project Monterey was dead before Caldera = bought oldSCO. Actually, the suit against IBM was also based on the=20 original AT&T contract. IBM had a perpetual AT&T contract, that=20 originally stated "derivative" works. SMP and NUMA were not part of USL=20 System V, but they were part of AIX as well as Sequent's Unix and=20 Digital Unix (eg. Tru64 Unix) BTW. But, it was probably Monterey that=20 knocked the legs out from under oldSCO. Additionally, the Monterey=20 contract IBM had with oldSCO required that IBM must specifically give=20 SCO permission to transfer it, and they claim that oldSCO was in=20 violation of that when they sold the Unix division to Caldera. --=20 Jerry Feldman <gaf-mNDKBlG2WHs at public.gmane.org> Boston Linux and Unix PGP key id: 537C5846 PGP Key fingerprint: 3D1B 8377 A3C0 A5F2 ECBB CA3B 4607 4319 537C 5846
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