There are a number of reasons that UNIX is successful; in the early days, it was available free of charge from Bell Labs to universities, at a time when universities were spending a lot of money for software licenses (VMS, etc.).
It appealed to computer science departments because of its structure and was a great way to teach computer science and operating systems. It also did not need a lot of equipment to run on.
As more and more university graduates went to industry they started demanding the use of UNIX in the corporate environment because of its simplicity and power. Eventually commercial companies (HP, IBM, SUN, etc.) took notice as a way of earning money.
Unix is no longer a single operating system, and as such no single company makes it. Historically, Unix was created by AT&T. Nowadays, operating system collectively referred to as "Unix" are created by companies such as Sun (Solaris), Hewlett-Packard (HP-UX), IBM (AIX), and Apple (Mac OS X).
UUCP is the abbriviation of Unix to Unix copy. It is worldwide email system called UUCP or Unix to Unix copy.This email system was developed for the operating system called Unix.
No, but Linux is based on Unix since Linux is a Unix clone.
Unix work is performed by users of the unix system, for application and system programs, or anything that requires a Unix system.
A computer that runs Unix.
Unix commands
A Unix console is a CLI interface through which to control or monitor a Unix computer.
Unix configuration is the process of tailoring a freshly installed version of Unix to your particular environment. Each Unix system may do that differently.
Solaris is a specific version of Unix; the term 'Unix' refers to a classification, and several vendors provide a Unix-like environment. So, in a sense, Unix and Solaris are the same thing.
There is no "default" Unix shell. Different Unix vendors shipped different shells.
Unix was created first. The C programming language was created for Unix.
Unix is not open source, it is proprietary. Linux is the open-source version of Unix.