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 ye*****rs it has ***** 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 ***** its staff to assist *****m in their scientific and academic research. It is older than Microsoft's brand of operat*****g ***** and considered more secure and less bug/error-free! "***** was designed ***** users who were largely com*****er scientists and AT&T (the owners ***** Bell *****) made UNIX available at nominal cost to ***** users, with whom it *****came popular. This helped to cre*****e a market for UNIX, at a time when technological changes had *****mselves created a need for ***** portable multi-user operating system. As a result ***** began to be adopted by non-academic users in the 1980's as it became commercially available. Several standards are now being worked out, and UNIX is steadily becoming the standard ***** system in many environments. (Wynne, 1997)"

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

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


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