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


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UNIX

***** UNIX STILL USED TODAY?

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 operating systems" as a result ***** the ***** it h*****s ***** extant. The OS was developed in the 1960s and born out of the need by Bell Laboratories in ***** 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 ***** systems and considered more secure and less bug/error-free! "It was designed for users who were largely computer 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 technologic*****l changes had ********** 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 ********** commercially available. Several standards are now being worked *****, and UNIX is steadily becoming ***** standard operating system in many environments. (Wynne, 1997)"

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

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

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