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

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

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

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


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