My cousin was ask this question at his job interview "What the different between Linux and Unix?". Then he ask me what the answer i did not know. Does any one know the answer?
UNIX was originally an operating system developed by Bell labs at AT&T, originally UNIX shipped with the source code and derivatives were made, the most notable are BSD UNIX, NeXtStep (on which MacOSX is based), and SunOS (originally BSD based, later System V).
UNIX was a proprietary operating system and not free.
In 2009, UNIX is any operating system which is tested by The Open Group for compliance with the Single UNIX specification (a.k.a. `IEEE 1003 POSIX'), an OS which is tested& certified is often called `Certified UNIX', UNIX is just a trademark, not an Operating system.
Operating systems which are similar or based on UNIX but not certified, are UNIX-like.
A list of certified UNIX operating systems:http://www.opengroup.org/openbrand/register/xy.htm
Most Free operating systems are not certified because it's expensive to get certified, and a piece of paper won't improve the quality.
UNIX does not have a GUI whereas LINUX does
Most certified UNIX OS's have a GUI, (MacOS X comes with cocoa, Solaris with Gnome, ect.)
AT&T UNIX had a GUI since before Linux even existed, The X Window System was developed on UNIX, so were toolkits such as Motif and XaW.
In other words, this doesn't make any sense.
Linux is a Unix distribution
There is no such thing as a ``UNIX distribution''.
Basicly, a ``Linux distribution'' is the Linux kernel + A lot of 3rd party programs + A bunch of scripts holding it all together.
Most UNIX and UNIX-like systems are complete operating systems in their own right, even if you look at closly related systems such as NetBSD and OpenBSD (Although some code is shared).
In many ways GNU/Linux is not UNIX (In fact, GNU means `GNU's Not UNIX'), it does many things very different, although there are also many similarities ... It is like Windows 98 and Windows XP, many things seem the same (start menu, this computer, ect.) but if you dig a little deeper then things are very different.
where as Unix is built more around sparc architecture
This is not true, UNIX was originally for the PDP, and has since been developed on many architectures, UNIX-like operating systems such as the BSD's, but also HP-UX and solaris run very good on the x86/amd64/IA-64 architectures.
Also, Linux runs on many different architectures too.
Also Linux is a bit more user friendly then Unix
Not really, KDE, Gnome, ect. all run on most UNIX and UNIX-like systems.
though Linux is a Unix like system, BSD, or FreeBSD, is more Unix like then Linux from what I have heard, haven't actually tried BSD...
Indeed, the BSD operating systems are much more like UNIX than GNU/Linux is in many ways.
UNIX was not designed to stop you from doing stupid things, because that would also stop you from doing clever things.