One of the main reasons of why Unix is so popular is its architecture. A few of them are listed here-
MULTIUSER :
'Multi-User' means that more than one user can access the Unix system at the sametime. It may be possible that one of the persons is sitting at London, acccessing the same Unix system and another user sitting at New York accessing the same system. Apparently it is possible that you and your friend are sitting in the same computer lab, side by side and accessing the same Unix server.
MULTITASKING :
Multi-tasking means that a Unix computer can run or execute several tasks or processes simultaneously and we can keep track of that. In case we find that a process is going out of our hand or is consuming resources, we can kill it and if we want restart it once again. Again it may be possible that 'Multiuser-Multitasking ' may be taking place and Unix manages all these very efficiently.
SECURITY :
An operating system will absence of ample security features and Unix has infact shown the way how operating systems can be smart enough ! When you login to your Unix machine your username will be visible, but your password will not be ... this is the first security checkup of Unix !
Similarly Unix allows the data to be shared across many users but with restrictions- there is READ, WRITE, & EXECUTE permissions associated with every files in Unix and again there is a secure encryption of the file !.. Guess enough of security measure.
PORTABILITY:
Just when you are about to throw out your own computer, Unix may come for your rescue. Unix requires minimum hardware requirements and runs with equal performance on old and new computers.
These are just the basic features of Unix,, a hell lot of things are yet to be discovered. Just boot your Unix machine and discover the part of Ocean that is undiscovered yet.. !
