Hello ALL.
What difference between Solaris and Linux is exist?
Oracle buy it but not destroy it ,Oracle have Linux but why Solaris must be exist?

Thanks.
Regards.

Some of the reasons commercial UNIX variants exist, include:
* Support for specific hardware (like SPARC processors in the case of Solaris or PA-RISC processors & HP-UX - not sure if current Linux distros are available for these?)
* Vendor support for the OS (also available for Enterprise Linux distros, but arguably easier to provide for proprietary OS's by vendors like Sun, IBM & HP who make both the hardware & OS - less hardware devices to support)
* Application support - many commercial applications are unfortunately not yet available on Linux

Another perspective:
Unix was developed long before the concept of OpenSource Software came along. Companies developed proprietary versions of Unix + applications.

Next came open source---I think the real beginning was the GNU project started by Richard Stallman. The GNU project developed open source "workalikes" for the common Unix utilities, and started work on an open source kernel.

Then came Linux---as they say, the rest is history.

The business models currently co-exist. we have Solaris because there is a market. We also have Linux because there is a market

Linux is a copy of Unix. Unix is older, more mature, more stable, scales better, etc.

Why a bad copy Linux must exist?

Unix was not originally used on PC computers. Linux was about the only way other than Berkley to run anything other than dos/windows.

There was Unix on PC, before Linux.

"Why must Linux be exist? "

I don't think so. Most "Unix" is (or was) proprietary code---Linux is usually described as a "clone" or "workalike".


Which PC was that?

What's your point here?

My point is to answer the OP. He wrote:
"...but why Solaris must be exist?..."

My answer is: "but why Linux must be exist?" as it is a clone (not copy, thanks for the correction). Why not use the original: Unix?

A short answer can be Solaris is an operating system while Linux is a kernel.
Why would Oracle want to destroy Solaris ?

Unix on x86 PCs predates Linux, sometimes by more than a decade.
Have a look at Xenix, SCO and Interactive Unix.
Of course, Minix, the early Linux development platform, was also released years before Linux and was running on standard PCs.

If you look at Xenix the first reported x86 PC was "Altos shipped a version for their Intel 8086 based computers early in 1982,"

You might be trying to suggest small industrial computers ran some type of unix which is true. The term PC or the original PC is what most people believe to be the start of the type systems we use. The class of x86 systems common in homes is not the type anyone had 10 years before DOS 1.x

Okay, "more than a decade" was a little bit exaggerated, make that between 8 and 6 years.

Here are some straight facts:

The term PC defines what was born in 1981 under the IBM PC name and then defined a de facto industry standard. This standard hopefully evolved during its life, and still does.

Unix System V was ported to the 286 and 386 PCs by Microport in 1985.

Xenix was ported to the IBM-PC architecture (16 bit, 4.7 MHZ 8086) in 1983, to the still 16 bit PC-AT 80286 in 1985 and to the 32 bit 80386 in 1987.

Interactive Unix was first released in 1985 (8086) and was later running on 80386 PCs.

The Linux development started 1991, so there is no doubt Unix was already available for the kind of machines Linux was initially developed for.

Of course, these commercial Unix implementations were too expensive (except Microport) to be popular for home (hobbyist) users. This, in addition to the 16 bit Minix lack of performance, was one of the reasons explaining why Linux took off.

??
10 years before DOS 1.x, i.e. around 1972, nobody had computers at home, even hand held calculators were very expensive at that time. The x86 was announced in 1978.

Good.
Excuse me is Solaris free?
Is Solaris Kernel vs with Linux kernel?
Solaris can be run Linux program?
Can i implement a network with full feature with Solaris?
Solaris can be communication with Linux or Windows?

Please give me more information.


Thanks.

There used to be a free and open source version (OpenSolaris). There is a free fork named Illumos on top of which are built several distributions (OpenIndiana, Illumian, SmartOS, StormOS, ...). The commercial version is Solaris 11, have a look at its download page for details about its license and especially the export restrictions that looks to be a show stopper in your case.
Both have their strengths and weaknesses.
For a short period of time, this used to be true but not anymore. Programs need to be at least recompiled and sometimes ported.
Hopefully. Solaris was created by a company whose motto was "The network is the computer".
Hopefully too.