INTRODUCTION Operating system (OS) is a set of programs that acts as an interface between user and computer hardware. It also manages the internal resources of a computer like control Unit‚ arithmetic logic unit‚ memory unit‚ I/O unit etc. simply we can say that operating system (OS) is a communication channel between the user and the computer machine. It is must for any computer system because the OS is only: The one program that runs at all the times on the computer. The program that
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DIFFERENT TYPES OF OPERATING SYSTEMS These tables provide a comparison of operating systems‚ listing general and technical information for a number of widely used and currently available PC and handheld (including smartphone and tablet computer) operating systems. The article‚ usage share of operating systems provides a broader‚ and more general‚ comparison of operating systems that includes servers‚ mainframes and supercomputers. Because of the large number and variety of available Linux distributions
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Jonathan Elliott Professor Supinski ENGL101C-13 15 November 2012 Why Linux is better than Windows Linux holds the highest‚ most used operating system when it comes to supercomputers. Although‚ Windows holds that title when it comes to the average desktop computer. “Now‚ not 20 years later‚ well over 90% of the world top 500 supercomputers are running Linux.” (Vaughan-Nichols) All operating systems from UNIX to Mac OSX have their pros and cons. Mac OSX is known more for making multi-media such
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Operating System An operating system (OS) is a collection of software that manages computer hardware resources and provides common services for computer programs. It is a program designed to run other programs on a computer. The operating system is an essential component of the system software in a computer system. Application programs usually require an operating system to function. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software
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UNIX‚ Linux‚ and Windows Server Critique UNIX‚ Linux‚ and Windows Server Critique Administration Windows Server Advantages There are many administration advantages for Windows Servers. One aspect is domain operations which are an important resource available on the network through Window Server. Making Window Server a domain controller adds security and the ability to add local and group policies to the network (Garza‚ 2010). If Window Server is not promoted to the status
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Xenix- a discontinued Unix operating system What is Xenix? Xenix is an operating system‚ which supports a computer’s basic functions. It is a discontinued version of Unix‚ a set of operating systems. Xenix was created by Bell Labs‚ which was part of the Bell System‚ and was owned by AT&T. Due to an antitrust case‚ which aimed to prevent AT&T from gaining control of the market‚ they were initially forbidden from entering the computer market. This meant that they were unable to sell Unix directly to
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Operating Systems Assignment #5 Of Chapter 4 Eighth Edition of Operating System Concepts by Avi Silberschatz Peter Baer Galvin & Greg Gagne 2009 4.1 Provide two programming examples in which multithreading does not provide better performance than a single-threaded solution Answer: (1) Any kind of sequential program is not a good candidate to be threaded. An example of this is a program that calculates an individual tax return. (2) Another example is a "shell" program such as
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publications and other professional conferences and journals. He is a coauthor of the textbook Database System Concepts. He has also written Op-Ed articles for the New York Times‚ the Boston Globe‚ and the Hartford Courant‚ among others. Peter Baer Galvin is the chief technologist for Corporate Technologies (www.cptech.com)‚ a computer facility reseller and integrator. Before that‚ Mr. Galvin was the systems manager for Brown University’s Computer Science Department. He is also Sun columnist for ;login:
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What Should People with Education do. By Dr. Michael E. Dyson In the speech that Dr. Dyson had spoken‚ he had made some very strong points about what people with education should do. He touched on everything you could think of that was important. He once said in his speech “You can throw up the hood but don’t let the hood rest on your shoulders.” Its many people out there that have a decent education‚ but still lack common sense and that would try to help their “friends” who didn’t go out and
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Mainframe Operating Systems At the high end are the operating systems for the mainframes‚ those roomsized computers still found in major corporate data centers. These computers differ from personal computers in terms of their VO capacity. A mainframe with 1000 disks and millions of gigabytes of data is not unusual; a personal computer with these specifications would be the envy of its friends. Mainframes are also making something of a comeback as high-end Web servers‚ servers for large-scale
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