Mac OSX is Apple's operating system developed in 2001 to combine the user interface of Mac OS with the architecture of a UNIX-like system. It includes common UNIX utilities and scripting languages, and is certified as compliant with UNIX standards. It consists of Darwin, a BSD-derived UNIX kernel called XNU; I/O kit and Cocoa frameworks; and the Aqua graphical user interface. Steve Jobs first introduced the Mac OS system in 1984 but redesigned it as Mac OS X in 2001, which achieved great success. People use Macs for various reasons including preference for Apple products, ease of use without maintenance, need for Mac-specific software, or opportunities to purchase at a good price.

1. THE MAC OSX OPERATING SYSTEM

2. What is the Mac OSX Operating System
 OS X , formerly known as Mac OS X is the operating
system developed by Apple for Macintosh computers,
created in 2001 to combine the known characteristics
User Interface of the native Mac OS with the
architecture of a UNIX-like operating system, of the
BSD family. Despite the name used until the 10.7.5
version, Mac OS X has a different version than Mac
OS with the first Apple computer was completely
rewritten and is in fact a different operating system,
UNIX Certified IEEE 100% compatible with the POSIX
standard .
 Mac OS X includes all the common utilities and UNIX
command shell, a complete Java machine
implemented natively, as well as the main scripting
languages such as Perl, PHP, tcl, Ruby and Python,
and is certified by The Open Group as compliant UNIX
03, since its release 10.5 onwards.

3. Mac OSX components
- Darwin, a free and complete operating system developed by
Apple Computer, the Open Source BSD family,derived from
Unix, with XNU kernel based on the Mach microkernel, inspired
and hybridized to the kernel of the FreeBSD operating system
with a vast NetBSD code portions;
- A number of I/O kit, Frameworks, a set of optimized libraries
that facilitate porting UNIX code and some set of APIs (coal
and cocoa), developed by NeXTStep and Apple Computer;
- A graphical user interface (GUI), called Aqua, developed by
Apple Computer.

4. The Creators
In the 70’s, Steve Jobs and Steve Wozniak designed the
first prototype of Personal Computer for the future
Apple, called Apple I. In 1984 Jobs markets the Mac OS
system, but it was a failure cause of his too care prize.
But in 2001 it was designed the first effective Operating
System from Apple: the Mac OS X. This new Computer
system was a great success.

5. Its Users
People use the mac for various reasons:
- Who is fond of the Apple:
For example people who buy a Mac are fond of the
Apple’s products.Because they already had a Mac, or
have an iPhone or an iPad.
- Mac is easy to use:
People buy a Mac also for its simplicity.
A Mac won’t block never, it won’t give errors from the
dark nature ,it won’t have virus problems , it doesn’t
require drivers updates , it will be optimized and fast
without requiring major maintenance.
- Need to use programs that exist only for Apple Mac:
Mac is used a lot in recording studios, in the
laboratories of graphic, DJs and, in general, in the
artistic studies of music, photography and design.

6. - It is a good opportunity:
This is obvious, if you like the Mac from an aesthetic point of
view, then it is worth to buy it if you can find it at a good price.
- Because do you want a computer that has both Windows and
Mac:
have a computer that can boot with Windows or OS X, then you
should buy a Mac where it is easy to make this dual installation
You don’t need an optical drive(CD or DVD).

7. What is the Mac OSX and its components: https://it.wikipedia.org/wiki/OS_X;
Its Users: http://www.navigaweb.net/2013/07/quando-e-chi-conviene-usare-il-mac.html;