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| The operation system (OS) is the most important type of system software because it provides the user with the interface to communicate with the hardware and other software on the computer. The operating system also manages the allocation of memory and processing resources to both Plug in Play and device driver , and provides services to application though the use of application programming. interface (API) . |
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| Software that makes the computer run |
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| provides the user with the interface to communicate with the hardware and other software on the computer and manages system resources. |
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| graphical user interface ( GUI) |
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| allows a users to point to and click on objects to start commands. |
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| the ability to do more than one task at a time. |
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| allows you to easily add new hardware to a computer system. |
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| is software that enhances the capabilities of the operating system. |
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| application programming interface |
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| which allows the application to request service from the operating system, such as a request to print of save a file. |
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| 1st thing you need to know sec 1 |
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| A GUI allows you to point and click to control your computer . |
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| 2nd thing you need to know sec1 |
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| The OS manages the system resource:processing and memory. |
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| 3rd thing you need to know sec1 |
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| PnP allows you to add new hardware easily. |
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| 4th thing you need to know |
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| Application software communicates with the OS though an API |
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| There are many different stand -alone operation systems. in the section we look at the three most common stand- alone operation system to day ( Microsoft Windows ,Mac OS X, and Linux ) |
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| A per-release version of software |
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| was first developed in 1991 by Linus Torvalds , then a graduate Student at the University of Helsinki. An open source operation system distribution that contains the Linux kernel and bundled utilities and application. |
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| was first released in 2001 as Mac OS 10.0 also called Cheetah. |
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| The most common desktop operating system since 1985 |
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| Software that has its source code published and made available to the public, enabling anyone to copy modify and redistribute it with out paying fees. |
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| is an open source project that aims to provide a fast, simple, and more secure computing experience for people who spend most of their time on the web. |
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| 1st thing you to know sec 2 |
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| Microsoft Windows is the primary OS installed on PCs. |
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| 2nd thing you need to know sec2 |
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| Mac OS X is owned by Mac OS |
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| 3rd thing you need to know sec2 |
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| Linux is an open source kernel OS that's distributed as part of many versions. |
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| In this section we look at some common network operating system (Windows server 2008 R2, Linux, UNIX,Novell) |
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| network operating system (NOS) |
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| is a multiuser operating system that controls the software and hardware that runs on a network. |
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| found on many corporate network; available in versions from Small Business edition to Enterprise and Data center editions. |
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| it's impossible to know how many Linux servers are currently installed because there are so many versions that can be downloaded and installed for free and without registration. |
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| Found on servers from HP(HP-UX) ,IBM(AIX) and sun (Solaris) |
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| was a leader in business servers throughout the 1980s and 1990s with its Netware products but moved to open source in the past decade. |
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| 1st thing you need to know sec 3 |
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| A NOS controls the software and hardware that runs on a client-server network. |
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| 2nd thing you need to know sec 3 |
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| The most common NOS are Windows Server,UNIX,and Linux |
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| 3rd thing you need to know |
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| A NOS isn't necessary on a peer-to-peer network. |
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| Embedded operation system run on devices such as ATM machines, smartphones,GPS devices,video game consoles , ultrasound machines, and even the communication and entertainment system in your car. Because they have very specialized and limited functions , these operting systems can be very small and on simpler hardware. |
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| embedded operation system |
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| A specialized operation system that runs on GPS devices,ATMs,smartphones, and other devices. |
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| is a virtural desktop that you interact with though your brower. |
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| 1st thing you need to know sec4 |
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| Embedded OSs are small and specialzed for devices such as GPS,ATMs, and cell phones. |
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| 2nd thing you need to know sec4 |
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| A Web OS is a virtural desktop that provides access to your applications and documents though a web brower. |
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| Utility software helps the user maintain the computer and is also considerd system software. |
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| to hold flies , a set of concentric circles called tracks are created. |
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| Keeps tracks of what files are saved and where they're stored on the disk. |
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| Files that are fragment are broken into small pieces that are stored in nonadjacent or nonconcontiguous clusters on the disk. |
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| is a utility that rear-rangers the fragement files on your disk to improve efficiency. |
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| 1st thing you need to know sec 5 |
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| Utility software helps you to mantain your computer. |
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| 2nd thing you need to know sec 5 |
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| you formant a disk to prepare it to hold data. |
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| 3rd thing you need to know sec 5 |
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| Files that are broken up and stored in noncontiguous cluster are considerd to be fragment. |
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| 4th thing you need to know sec 5 |
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| NTFS(New Technology File System) is the file system used on Windows-format hard drives. |
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| Every personal computer has a operating system, so there will always be people who can install and troubleshoot OS problem. Certification related to network opering systems. |
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| Microsoft Certified Technology Specialist (MCTS) |
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| Certification is one way to show your expertise in Windows operating systems. |
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