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 grandfa*****r of operat*****g systems" as a result of the ***** ***** h*****s ***** extant. The OS was developed in the 1960s and born out ***** the need by Bell Laboratories in the United States to have an operating system that could be use by 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 *****) made UNIX available at nominal cost to academic users, with whom it *****came popular. This helped to create a market for UNIX, at a time when technological changes had themselves *****d a need for ***** portable multi-user operating system. As a result ***** began to be adopted by non-academic users in the 1980's as ***** became commercially available. Several st*****ards are now being worked out, and UNIX is steadily becoming ***** standard operating system in many environments. (Wynne, 1997)"

UNIX is still in used by millions ***** server worldwide and despite various variants developed ***** the years, ***** b*****ic kernel remains the same with variations made depending on ***** needs of an individual or *****g*****ization. A more ***** offshoot - although Linus Torvalds at times won't admit it - is the Linux family of oper*****ing **********. "The market for the UNIX system continues to exp*****. IDC estimates the market at US$ 39 billion in 1996 and forecasts ***** market ***** be US$ 50 billion in the year 2000. In addition, the installed base of the UNIX ***** has an estimated value ***** *****$ 122 *****. These market estimates lead to several conclusions about the UNIX system, as follows: An annual market of US$ 39 billion is large enough to remain attractive to ***** suppliers ***** ***** provide sufficient revenue to fund continuing high levels ***** investment in support and product enhancement. The UNIX *****'s growth rates, which appear modest in comparison to ***** unit shipment growth of newer products, are anchored by an enormous ***** base. High unit shipment growth rates are typical of new entries ***** 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 when it comes ***** deployment in servers and workstations. In ***** client-server arch*****ecture, UNIX was *****strumental in the development of the *****ternet as well as networking environment for ***** types of computers whether mainframe, micro***** or PCs. The basic property of the UNIX OS is the kernel which sources out ***** commands f***** the whole system from booting, execution to shutdown. "***** kernel is the part carries ***** basic operating ***** functions such as accessing files, allocating memory and handling communications. A shell provides


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