...In this pack of POS 355 Entire Course you will find the next docs: POS-355 Week 1 DQ 1.doc POS-355 Week 1 DQ 2.doc POS-355 Week 1 Lectures Lecture 1.1 Computer Basics.doc POS-355 Week 1 Lectures Lecture 1.2 OS Basics.doc POS-355 Week 2 Assignments Individual Real-time Operating System.doc POS-355 Week 2 DQ 1.doc POS-355 Week 2 DQ 2.doc POS-355 Week 3 Assignments Individual IND.doc POS-355 Week 3 DQ 1.doc POS-355 Week 3 DQ 2.doc POS-355 Week 4 Assignments Individual IND.doc POS-355 Week 4 DQ 1.doc POS-355 Week 4 DQ 2.doc POS-355 Week 5 DQ 1.doc POS-355 Week 5 DQ 2.doc General Questions - General General Questions POS 355 Week 1 Individual Assignment Memory Management Paper For this assignment, you will choose one the following options: · Option 1: Write a 2-page paper that explains memory management requirements. · Option 2: Write a 2-page paper that explains the differences in memory management between Windows® and Linux®. Format your paper consistent with APA guidelines. UNIX/Linux Versus Mac Versus Windows Write an 8- to 10-page paper that compares and contrasts the basic system differences between UNIX®/Linux®, Mac®, and Microsoft ® Windows® operating systems. Include discussion and comparison of the following: · Memory management · Process management · File management · Security Format your paper consistent with APA guidelines....
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...This work of POS 355 Week 2 Discussion Question 1 contains: Discuss something in week 2's textbook reading that you found interesting and/or which resonated with you. General Questions - General General Questions POS 355 Week 1 Individual Assignment Memory Management Paper For this assignment, you will choose one the following options: · Option 1: Write a 2-page paper that explains memory management requirements. · Option 2: Write a 2-page paper that explains the differences in memory management between Windows® and Linux®. Format your paper consistent with APA guidelines. UNIX/Linux Versus Mac Versus Windows Write an 8- to 10-page paper that compares and contrasts the basic system differences between UNIX®/Linux®, Mac®, and Microsoft ® Windows® operating systems. Include discussion and comparison of the following: · Memory management · Process management · File management · Security Format your paper consistent with APA guidelines. Create a 10- to 12-slide Microsoft® PowerPoint® presentation based on the paper. Discussion Question Main Memory Should DMA access to main memory be given higher priority than processor access to main memory? What is the purpose and technique of DMA logic? Note: Be prepared to discuss in class. Do not submit a written response. POS 355 Week 2 Individual Assignment File Management Paper For this assignment, you will choose one of...
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...Memory Management Amanda Dyer POS/355 August 28, 2014 August Smith Memory Management Windows and Linux are two popular operating systems used in today’s technology age. Windows is most commonly used as a desktop environment for beginners and has advanced into a well-developed operating system. Linux isn’t every users first choice as an operating system, but has become more and more popular over the past years. Linux is harder to manage than Windows, but comes with a great deal a configuration choices, as well as, flexibility. Both operating systems are similar in areas and offer countless benefits. However, with similarities come differences. One of the foremost differences between Windows and Linux is their memory management. What is memory management? According to Tutorialspoint (2014), memory management is the functionality of an operating system, which handles or manages primary memory. The memory structure affects the overall functionality and speed of the system. Therefore, it is one of the most vital parts of an operating system. Every memory location is tracked, whether free or allocated. The memory management system provides features such as address space, memory mapping, paging, shared virtual memory, fair physical memory allocation, and protection. Windows can access up to 4GB of physical memory on a 32bit x86 system. Paging on Windows allows for the use of a logical memory address vice the physical address. The logical address is translated...
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...Memory Management Comparison Christopher Liebenrood POS/355 March 24, 2014 Chris Miserendino Memory Management Comparison While researching the differences between the memory management systems of Windows and Linux operating systems there was not many differences except a small few. To start the memory management system is one of the most vital parts of the system. It manages and organizes the structure of (RAM) Random Access Memory as well as the hard disk. The important task it performs includes allocation and deallocation of the memory. This includes the logistics of the operating system and the use or start of virtual memory by using the hard disk as extra RAM. It is important to utilize or optimize the full potential of the systems memory considering it greatly affects the performance and speed of the operating system. So let's start with the Windows Operating System. Windows has two kinds of memory virtual and physical. The memory of this particular operating system is managed with pages and processes demand it as it becomes necessary. Memory pages are 4KB in size for both kinds of memory (Sneath, 2014). Depending on the architecture of the system you may allocate large pages for efficiency (Sneath, 2014). Windows organizes its memory in a tree structure. Every branch of the tree is called a node and they are virtual address descriptors (VAD). The VAD marks a range of address and they have the same security parameters and commit state information. The VAD designates...
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...Paper 1 POS/355 Option 2: The Differences in Memory Management between Windows® and Linux®. Linux and Windows are both operating systems for the common home PC. Each of them offers positive benefits and negative detriments. Some people try to claim that one is better than the other. But as an active user of Linux for over half a decade, I can honestly say that both are superior in their respective strengths. I would never attempt to do any type of visual work like video editing or photo editing that requires anything in depth on a Linux machine. The native programs are just not as good as anything that Adobe offers in the Windows world. However if I am surfing the net checking out random sites that might be questionable in nature, I would not dare so unless I was on my Linux partition. In reference to memory managements differences between Windows and Linux; We have to first start with the base. Memory can be viewed in both a RAM basis and memory as in storage and a base for operating system. Windows has been locked into a dated filesystem for the basis of their operating system. This file system is called NTFS. NTFS positive is that it is old and stable. Its positives are know and it’s negatives are so well know that they come as no surprise to end users. Sadly this outdated file system technology requires the end user to periodically defragment the operating system to combat NTFS’s gross lack of the ability to organize files. Over time NTFS moves files...
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...Memory Management Differences Randall Anderson POS/355 July-27, 2015 Alicia Pearlman Memory Management Differences Before anyone can begin to understand the differences between Windows and Linux memory management, one must understand memory management and its requirements in today’s systems. These requirements play a very important part in a computers performance and speed. Both operating systems share some similar characteristics as to how their memory management works, but also differ as to their complexity. Windows is a more complex system where Linux is more simplistic. Stallings states that “Linux shares UNIX characteristics but has its own features and is very complex” (Stallings, 2012,). The architecture of Linux’s virtual memory is one of a three level structure. Page 1 is equivalent to one page. Entries are directed to the page directory and the page must be in the main memory to be active (Stallings, 2012). The middle page directory can be as large as multiple pages. Each entry points to one page of the table. The last is what is known as the page table and it refers to one virtual page of the process. The structure was designed for a 64 bit Alpha processor and is independent. What is known as the buddy system is used to help Linux increase it efficiency. This system works by splitting and merging pages which are allocated and deallocated in the main memory (Stallings, 2012). Linux uses a page replacement algorithm which deals with the simple clock that...
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...Windows and Linux- Memory Management Marlana Muzny POS/355 May 13, 2013 Joe Fischer Windows and Linux- Memory Management Memory management is the process that the operating system takes to manage the computers processes and memory. This means that the operating system has to figure out what sections of the memory are free and are being used at the current time allocating and reallocating as needed. Memory management is extremely important in how a computer operates. In this paper, we will compare the new Windows 8 to the Linux operating system and describe the differences in the memory management. Windows 8, it is the newest product in operating systems for Microsoft. With enhancements from the previous version, Windows 8 makes better use of the memory management than the previous version Windows 7. In Windows 7, Microsoft started making changes to the operating system when it came to memory management; however, fell short compared to what was already being done in Linux operating system. With the previous versions, most of the memory management occurred upon login. This slowed the processor down taking up all the resources at one time using the system memory. To address this issue and correct it in Windows 8, Microsoft implemented a start on demand model. What this means is that processes that are needed are delayed until the process is needed verses having all the processes start automatically when the computer is started. This makes more run...
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...UNIX®/Linux® versus Mac® versus Windows® POS/355 October 29, 2012 Carol S. Eichling UNIX®/Linux® versus Mac® versus Windows® There are several computer operating systems available on the market, and it is sometimes difficult to choose. Therefore, it is important to compare the system capabilities to make the decision easier. The three biggest players in the operating systems market are UNIX®/Linux®, Mac®, and Microsoft® Windows® with Windows® holding the largest market share (Boitor & Brătucu, 2011). These three operating systems are capable of multi-processing and have similar capabilities; however, and it is important to compare and contrast how they handle memory management, process management, file management, and security, which are critical system functions. Discussing memory management, which is a vital component in operating systems, is first. Memory Management Memory management refers to the way a system makes use of the computer’s RAM (Random Access Memory). Many of the operating systems in use on computer systems have positives and negatives in their use of memory attributes. “Memory management is usually divided into three areas: hardware, operating system, and application…although the distinctions are a little fuzzy. In most computer systems, all three are present to some extent, forming layers between the user's program and the actual memory hardware” (Ravenbrook Limited, 2001, p. 1). There are several types of memory, including main memory, file system...
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...UNIX /Linux versus MAC versus Windows Paper POS/355 March 11, 2013 Bhupinder Singh UNIX/Linux versus MAC versus Windows Paper Introduction Today we live in a world where technology is the way to go. Even in this century there are people that are still clueless on the operating system. It is different, exciting when a new and advance system comes out. But some of us are so confused when it comes to the basics of new technology. Operating systems are programs which manages the computer’s hardware. The systems provide a basic for the applications programs between the computer user and its hardware. When looking, there are so many different types of operating systems that are available. The four main operating systems that are used are Windows, Mac, UNIX, and Linux. For every computer there are many different items that make the system a whole. When it comes to the different operating systems there are different features available, even though when you think of computers a person might think security will all be the same but there are difference between each one. As you read more you will understand the security and the difference between a MAC, UNIX/LINUX and Windows systems and how each one works. Access control goal is to protect a resource from unauthorized access while facilitating seamless and legitimate use of such resources. Presently, each day users hold the need to access to those resources through a broad line of devices...
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... |POS/355 Version 9 | | |MU12BIT08 | | |Introduction to Operational Systems | | |Wk 1 June 10 | | |Wk 2 June 17 | | |Wk 3 June 24 | | |Wk 4 July 01 | | |Wk 5 July 08 | Copyright © 2012, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003 by University of Phoenix. All rights reserved. Course Description This course provides an introduction to operating systems. Topics covered include operating system concepts, program execution, and operating system internals such as memory, processor, device, and file management. A variety...
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...Operating Systems Team B will take what we have learned from our course POS/355 Operating systems and research to compare and contrast the UNIX/Linux, Microsoft Windows, and MacOS systems. In particular we will contrast and compare the different operating systems in regards to memory management, processing, file management and security. Operating systems at the core is all about the kernel. The kernel in all of the operating systems is the main component that is responsible in the management of memory, processing, file management and security. Contrast and Comparison of Memory Management within Operating Systems Memory management in comparison and contrasts between the different operating systems is due to the way the kernel works in conjunction with the memory. Since each operating system has different kernel’s they each have similar and different ways that they manage memory. Contrasts and comparisons on Mac OS, Windows, and UNIX/Linux are described below. 1. UNIX: Though UNIX and Linux are extremely similar when it comes to how things work internally; there are slight differences that make UNIX distinct from its counterpart. One process that UNIX utilizes is known as swapping; this is done by moving chunks of the Virtual Memory (called pages), out of the main memory and moving others in. In order for this process to work at its best, those pages that are needed must be accessible in the Main Memory at the demand of the CPU. When a page is expected to be needed in the...
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...Differences and Similarities Between Operating Systems POS/355 Intro to Operating Systems November 5, 2012 Differences and Similarities Between Operating Systems There are many similarities and differences among the top desktop operating systems UNIX/Linux, Windows, and Mac. An operating system is the software which operates the basic functions of a computer. Among these functions are task scheduling, I/O, and the execution of programs. There are key areas in which these operating systems must function. Memory management, processor management, file management, and security are the main focus of an operating system. Memory management refers to the way an operating system manages the computer memory. Processor management is the way the computer handles processing of programs. File management is the way an operating system allows files to be saved, deleted and handled by the user. Security is addressed by the operating system to ensure that the files on a computer are safe from unwanted intrusion and manipulation. Each of the three operating systems confronts these functions in their own way. In some ways they are similar and there are also specific differences. Memory management is the function of a computers operating system responsible for managing the computers primary memory. The memory management function keeps track of the status of each memory location, either allocated or free. It determines how memory is allocated among competing processes, deciding who gets...
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...File Management POS/355 05/13/2013 John Buono File Management The file managers function is to regulate all of the files on a system that is stored on the storage mediums. There are several tasks that the file manager must perform in order to manage these files. The file manager must be able to identify the unique naming conventions of the files in order to complete its tasks. The file manager must also be able to determine the location of the files, the sectors that make up the file on the storage medium, and the order of those sector that make up the file. It is important that the file manager work with the device manager and use effective algorithms for the read and write of files. The file manager also gives or denies access to files by users or programs. The file manager also is in cooperation with the process manager to allocate or de-allocate files to the processor. The last task is that the file manager provides easy commands that assist users and/or programs in file handling (Gallert, 2000) . Unix/Linux File Management UNIX/Linux uses the distinction of inodes to refer to files or segments of files on the system and uses pointers to indicate where the files are on the storage media. There are some slight differences between each version of Unix/Linux but we will not go into those differences in this paper and will only cover the basics of file management. No matter what version of Unix/Linux is being used the file structure and permissions do seem to be...
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...Team A: , POS/355 August 25, 2012 Demetrius Fluker University of Phoenix Operating System Analysis Paper When ruminating over which operating system for a home, business, or office computer or network of computers, it is vital to evaluate all areas of the different operating systems options. The key system options to compare and contrast when evaluating Microsoft Windows XP, Microsoft Windows Server 2003, and Linux operating systems are to consider the system requirements, the different editions available, security features, system features, updates and support, user interface, and cost effectiveness. Moreover, the best fit operating system can be determined depended on the individual’s or organization’s needs. Operating System Requirements Windows XP The system requirements for Windows XP Home Edition and Professional Edition are the same. These requirements are a PC with a 233 megahertz or higher (a 300 megahertz + processor speed is recommended), 64 megabytes (MB) of RAM or higher (128 MB is recommended), 1.5 gigabytes (GB) of available hard drive space, a video adapter and monitor that is Super VGA (800x600) or higher-resolution, CD/DVD-ROM drive, keyboard, and mouse/pointing device. The Windows XP Starter Edition has different system requirements. These are 233MHz processor or better, 256 MB of RAM, Super VGA (800x600) video adapter and monitor, CD/DVD-ROM drive, keyboard, mouse/pointing device, DirectX 9 graphics with 32 MB of graphics memory, and Internet...
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...Android Operating System POS/355 June 19, 2013 Castle Phelps Introduction The “Android” operating system is in many users opinion the best mobile device operating system in use today. It allows mobile device manufacturers the ability to tailor the operating systems for the specific device it to be used on, In this essay we will talk about what makes the Android operating system the most popular operating system out on the market today and why it controls the majority market share for mobile devices. We will discuss how the Android allows for external storage of applications, expandable memory, and use of the Google “Cloud” with apps such as Google Drive, Google Play, and Google Wallet. We will also cover how android deals with internet security, viruses, and malware on their mobile devices operating systems. Memory Management The fact that Google allows mobile device manufacturers to customize the android operating system for all of their phones and tablets means that each device will vary on how much internal memory will be used for android firmware and applications. Many of the higher end devices such as Samsung’s Galaxy line of devices offer 1GB of memory and up with expandable memory up to an additional 32GB with a micro SDHC card. Android is a software stack for mobile devices that includes an operating system, middleware and key applications. Android is a Linux based OS with a 2.6.x kernel, stripped down to handle most tasks pretty well; All the basic OS operations...
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