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 ye*****rs ***** has been 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 ***** ***** and considered more secure and less bug/error-free! "***** was designed for users who were largely com*****er scientists and AT&T (the owners of Bell Laboratories) made UNIX available at nominal cost to academic *****, with whom it *****came popular. This helped to create a market for *****, at a time when technological changes had themselves *****d a need for ***** portable multi-user operating system. As a result UNIX began to be adopted by non-***** 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)"

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

One ***** the main reasons for UNIX's 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 the client-server architecture, UNIX was *****strumental in the development of the *****ternet as well as networking environment for various types ***** computers whether mainframe, microcomputers or PCs. The basic property of the ***** OS is the ***** which sources out ***** comm*****s for the whole system from booting, execution to shutdown. "***** kernel is the part carries out basic operating ***** functions such as accessing files, allocating memory and handling communications. A shell provides


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