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 ***** been called "the grandfather of operating systems" as a result ***** the ye*****rs ***** has been extant. The OS was developed in 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 them in their scientific and 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 ***** Bell *****) made UNIX available at nominal cost to academic *****, with whom it became popular. This helped to create a market for *****, at a time when technologic*****l changes had ********** *****d 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 *****came commercially available. Several st*****ards are now being worked *****, and UNIX is steadily becoming the standard ***** system in many environments. (Wynne, 1997)"

***** is still in used ***** millions of server worldwide and despite various variants ***** ***** the years, ***** b*****ic kernel remains the same with variations made depending on ***** needs of an individual or organizati*****. A more popular offshoot - although Linus Torvalds at times won't admit it - is the Linux family of oper*****ing *****. "The market ***** the UNIX ***** continues to expand. IDC estimates ***** ***** at US$ 39 billion in 1996 and forecasts the market ***** be US$ 50 billion ***** the year 2000. In addition, ***** installed base of the UNIX system ***** an estim*****ed value of *****$ 122 *****. These market estimates lead to several conclusions about the ***** system, as follows: An annual market of US$ ***** 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 installed base. High unit shipment ***** rates are typical of new entries in a marketplace. (UNIX Systems Cooperative Promotion Group, 2006)"

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


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