Geek Stuffs

Unix is popular operating system, developed by AT&T in 1969, that was very important in the development of the Internet. It is a multi-processing, multi-user, family of operating systems that run on a variety of architechtures. UNIX allows more than one user to access a computer system at the same time.

A widely used Open Source Unix-like operating system. Linux was first released by its inventor Linus Torvalds in 1991. There are versions of Linux for almost every available type of computer hardware from desktop machines to IBM mainframes. The inner workings of Linux are open and available for anyone to examine and change as long as they make their changes available to the public. Because of its robustness and availability, Linux has won popularity in the Open Source community as well as among commercial application developers.

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* Unix requires high hardware configuration I.e it works in mainframe computers but can't work in x86 based personal computer. Whereas Linux (which is built on the concept of Unix) has low hardware requirement I.e it works in mainframe as well as x86 based personal computer.

* Unix: An Operating System developed in olden days in which kernel interacts directly with the hardware.kernal is consider to be heart of this os. In this Operating system everything is considered as a file, provides greater security. Ex: posix

*Linux: Linux is an Operating system which use unix as its base and gives further more facilities and applications. Merely speeking GUI is made in linux having unix as its core. Ex: Redhat, Fedora, Susee, Mandriva. Solaris OS also using the same unix kernal all the unix commands will work on solaris and have 500 more solaris specific commands. Differnent organizations used the UNIX kernal and added their own essence to form their own version of linux. Both UNIX and LINUX are Open source.

* Unix is the foundation for a number of operating systems, Linux is one of them, and probably the most popular. Novell and Free BSD are 2 other commonly used Unix varients.

* UNIX is an operating system created in the early days of computers. More recently, Linux was created as an open-source, freeware operating system. It is "UNIX-LIKE", meaning that it uses many UNIX constructs but also departs from traditional UNIX in many ways. Like UNIX, Linux is faster than many of the other commercially available operating systems. It appears to also be far more robust than any of the Microsoft products. Linux is being used in many time critical applications because of it's speed. It is also used in many applications that need to maintain uptime because Linux, like UNIX, can run for months at a time without rebooting. While the typical method of solving Microsoft problems is to "reboot", that particular requirement does not seem to be appropriate in a Linux/Unix environment. While UNIX has created a windows-like work environment, Linux has improved greatly on that concept. Linux has become a real player in the consumer operating system market... and it's free. While you may want to pay for a Linux distribution, the actual code is free and you are allowed to load it on as many machines as you want. You can get Linux for free if you wish to load it across the internet

diff. bwn linux & unix