Essay - Unix is Unix Still Used Today? Unix...simply Put, is a...

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UNIX...simply put, is a robust and scalable operating that has been in existence for almost over 30 years. In some cases, it has been called "the gr*****fa*****r of ***** systems" as a result ***** the ***** it h*****s ***** extant. The OS was developed ***** the 1960s and born out of ***** need by Bell Laboratories in the United States to have an operating system that could be use by its staff to assist *****m in their scientific ***** academic research. It is older than Microsoft's brand of ***** systems and considered more secure and less bug/error-free! "***** was designed for users who were largely com*****er scientists and AT&T (the owners ***** Bell *****) made UNIX available at nominal cost to ***** *****, with whom it became popular. This helped to cre*****e a market for UNIX, at a time when technologic*****l changes had *****mselves created a need for a portable multi-user operating system. As a result ***** began to be adopted ***** non-academic users in the 1980's as it ********** commercially available. Several standards are now being worked out, and UNIX is steadily becoming the st*****ard operating system in many environments. (Wynne, 1997)"

***** is still in used by millions of server worldwide and despite various variants developed ***** the years, the basic kernel remains the same with variations made depending on ***** needs of an individual or organizati*****. A more ***** offshoot - although Linus Torvalds at times won't admit it - is the Linux family of operating **********. "The ***** ***** the UNIX system continues to expand. IDC estimates ***** market at US$ 39 billion in 1996 and forecasts the market to be US$ 50 billion in ***** year 2000. In addition, the installed base ***** the UNIX system has an estimated value of US$ 122 billion. These market estimates lead ***** several conclusions about the UNIX system, as follows: *****n annual market ***** US$ 39 billion is large enough to remain attractive to many suppliers and to provide sufficient revenue ***** fund continuing high levels of investment in support and product enhancement. The UNIX ********** growth rates, which appear modest in comparison to the unit shipment growth of newer *****s, are anchored by an enormous installed base. High ***** shipment growth ***** ***** typical of new entries in a m*****rketplace. (UNIX Systems Cooperative Promotion Group, 2006)"

***** of the main reasons for UNIX's unparalleled use and steady market growth is its portability, multi-user and multi-tasking ability especially ***** it comes to deployment in *****s and workstations. In ***** client-server arch*****ecture, UNIX was instrumental in the development of the *****ternet as well as networking environment for various types ***** computers whether mainframe, microcomputers or PCs. ***** basic property of the UNIX ***** is the kernel which sources out the commands for the whole system from booting, execution ***** shutdown. "The kernel is the part carries ***** basic operating ***** functions such as accessing files, allocating memory and handling communications. A shell provides


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