Operating System Tutorials

Operating System Tutorial for MAC, Unix, Linux, Windows
Microsoft Windows operating system articles, tutorials and resources
UNIX operating system articles, tutorials and resources
Android Programming and App Development tutorials
LINUX operating system articles, tutorials and resources

MAC

MAC operating system articles, tutorials and resources
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Mozilla Firefox is widely being used today. But some people prefer Internet Explorer more than Mozilla Firefox because Mozilla Firefox consume a lot of memory and sometimes does not respond. Did you notice that Mozilla Firefox consumes a lot of memory over a period of time and sometimes slows down...
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How does the computer work? Here i will show you how the computer is build up how it works. Lets start with CPU. CPU: This is the CPU stands for "Central Processing Unit" this is the brain to the computer. This is why you can running diffrent programs at the same time. If you press...
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Virtual machine(VM) as the name suggests is a software implementation of a programmable machine running inside another machine i.e an OS running inside another OS e.g. Linux running inside Windows. The Host machine on which the Virtual Machine Monitor/Software runs is called the Host Machine or...
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Ramlal Bhagat, a Class XII. student from Haryana,India has developed a 32-bit operating system demonstrated to be far Superior to any of the desktop operating systems in the market today. The program has been named "O-Yes". O-Yes provides operating system services on any Pentium-based personal...
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An operating system that can easily be described as the best that ever existed, BeOS was just a shot that unfortunately missed the target. Be Incorporated failed to bring this OS the glory that it deserved being forced to sell the intelectual property to Palm, as many of us probably know it. A...
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As you all know with the launch of Microsoft Office 2007, Microsoft unveiled the Office Open XML format in the office suite.Office Open XML (also referred to as OOXML or OpenXML) is a free and open Ecma International standard document format, and a proposed ISO/IEC standard for representing...
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An operating system can be defined as: An operating system is a program that acts as an interface or intermediary between the user of a computer and the computer hardware. An operating system exploits the hardware resources of one or more processors to provide a set of services to system users...
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Red Hat's newest hobbyist and developer version of Linux, Fedora Core 2, caused trouble for some who found they couldn't start Windows after installing the Linux upgrade side by side with it. The bug had cropped up in testing, but after Red Hat released Fedora Core 2 in May, many more users...
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Have you ever wondered what the difference between a folder and a directory is? Or did you ever try to find the folder ?Control Panel? on your hard drive and wondered where it was? The answers lie in understanding a little bit about system folders. System Folders & What Happened to...
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CONCEPT: UNIX allows you to connect processes, by letting the standard output of one process feed into the standard input of another process. That mechanism is called a pipe. Connecting simple processes in a pipeline allows you to perform complex tasks without writing complex programs. ...
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Windows: A family of operating systems for personal computers, Windows dominates the personal computer world, running, by some estimates, on 90% of all personal computers. Like the Macintosh operating environment, Windows provides a graphical user interface (GUI), virtual memory management,...
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Q: What are the basic functions of an operating system? A: Operating system controls and coordinates the use of the hardware among the various applications programs for various uses. Operating system acts as resource allocator and manager. Since there are many possibly conflicting requests for...
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A hard drive is a mass storage device found in all PCs (with some exclusions) that is used to store permanent data such as the operating system, programs and user files. The data on hard drives can be erased and/or overwritten, the hard drive is classed as a non-volatile storage device which...
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What is a Firewall? Well lets say your computer is your house. When the door is all the time open everyone can go in out as they want. A firewall is like a door with lock on. So you can lock people out from your computer if you think they shouldn't have access to it. So all the time someone...
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Function to a Operation System: Operation system is a program so is standard on every computer. Its software so allow you to do different task on your computer. The Functions can be from copy text to delete files this is an easy example what the function to an Operation System might be. There...
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I see a lot of Windows users always complain "My computer/pc is too slow. How to speed up my pc speed performance?" and they need a new PC. Upgrading the PC is always a viable option for better performance, but here are things that you can do to keep your PC healthy and i am sure this will help you...
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In last article we went through History and Evaluation of Operating System where I gave an overview of operating System ad its evolution. Here I will first discuss about instruction and how it is executed. The basic function performed by a computer is program execution. The program (to be...
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Before discussing memory allocation further, we must discuss the issue of memory mapping and protection. When the CPU scheduler selects a process for execution,the dispatcher loads the relocation and limit registers with the correct values as part of the context switch.Because every address...
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Having checked ReactOS's code I managed to fulfill three of my wishes at once. Firstly, I had wanted for a long time to write an article on a common project. It's not interesting to check the source code of projects like Chromium: its quality is too high and a lot of resources are spent to maintain...
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Today while reviewing and editing articles for a website I got an .ODT file which behaved a bit strangely. If i would press 'delete' the words would get stroked instead of deleting. This was quite a bit annoying and I had no clue about that problem, Googling for about 15 mins got me nothing and the...
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