...Failures Adam Cain POS/355 2/6/2014 Randy Shirley Failure is not an option! This is what I have been told growing up and while I served in the Marine Corps, but as I found out in this assignment, failure is an option. This holds true when talking about a distributed system, which is a computer network like a Wide Area Network (WAN) or a Local Area Network (LAN). Distributed systems is defined as a software system in which components located on networked computers communicate and coordinate their actions by passing messages (Coulouris, Dollimore, Kindberg, & Blair, 2012). This allows the computers or even devices like smart phones and tablets, to share resources like printers, hard drives, and even internet access. A centralized system is a computer that is by itself, one that is not connected to a laptop. Think of a centralized computer as one of the spy computers in movies, like Mission Impossible. These systems can and will fail, while sharing some failures; a distributed system has more components that could fail, leading to them having more problems. There a many things that could fail on a distributed system, this paper will cover four of them, starting with hardware failure. Video cards, network access card, hard disk drives, solid-state drives, memory, and power supply units (PSU), these are all pieces of hardware that are in most of the computers sold today, and they can all die at a moment’s notice. Some of these items, if they failed would not...
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...General Public License POS/355 Professor Fischer Jaquetta Meyers General Public License POS/355 Professor Fischer Jaquetta Meyers 1 The GNU or the General Public License was created by Richard Stallman in 1989. The program was started in 1984 to develop operating systems that were similar to UNIX. He thought in order to protect software from being made proprietary; it was he who made it a derivative of copyright law that serves “the opposite of its usual purpose”. ("Gnu General Public License (Gnu GPL or Simply GPL", 2008) The General Public License abbreviations can be GNU or GPL. GPL states that programmers can copy and distribute copies of a software program’s source code, under the condition that each copy displays a copyright notice. The GPL also deals with the modification and redistribution of software in which it requires the same conditions as well as notification of any changes made to the software. The GPL is under copyright ownership of the FSF which is a tax-exempt charity to generate funding for the software. The GPL was created to set forth principles of the founding of the project and FSF. The FSF is when a particular user has software freedom. They have freedom to run any program for any purpose, they can study the program to see how the program works and make changes if needed. The third freedom that is allowed by the user is the freedom to redistribute copies and finally they can distribute copies of changes made by others...
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...College of Information Systems & Technology Bachelor of Science in Information Technology with a Concentration in Information Management The Bachelor of Science in Information Technology (BSIT) degree program is focused on the acquisition of theory and the application of technical competencies associated with the information technology profession. The courses prepare students with fundamental knowledge in core technologies, such as systems analysis and design; programming; database design; network architecture and administration; web technologies; and application development, implementation, and maintenance. This undergraduate degree program includes 45 credits in the required course of study and 15 credits in the concentration. Some courses have prerequisites. In addition, students must satisfy general education and elective requirements to meet the 120-credit minimum, including a minimum of 48 upper-division credits required for completion of the degree. At the time of enrollment, students must choose a concentration. The Information Management concentration is designed to provide coverage of the collection, architecture, modeling, retrieval and management of data for meaningful presentation to the organization. This concentration prepares students to develop, deploy, manage, and integrate data and information systems to support the organization. Note: The diploma awarded for this program will read: Bachelor of Science in Information Technology and will not reflect the concentration...
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...Open Closed Source Systems - GNU-GPL Paul Ray POS/355 March 23, 2014 Ptof. Singh, MBA, PMP, CCIE Open Closed Source Systems - GNU-GPL The Linux kernel is distributed under the GNU general public license (GPL), the terms of which are set out by the Free Software Foundation. (Stallings, 2011) Linux is not public-domain software. Public domain implies that the authors have waived copyrights in the software, but copyright rights in Linux code are still held by the code's various authors. Linux is free software, however, in the sense that people can copy it, modify it, use it in any manner they want, and give away their own copies, without any restrictions. "Without a community of developers their probably would not be any free software.” (Wolf, Miller, & Grodzinsky, 2009, para. 1). Wolf (2009) GNU is a Unix-like operating system that is free software that respects your freedom. You can install versions of GNU (more precisely, GNU/Linux systems) which are entirely free software. GNU stands for GNU is a recursive acronym for "GNU's Not UNIX!" Wolf (2009) Free Software (FS) is a notion that was first introduced by Richard Stallman in 1984 at the beginning of the GNU project. The Free Software Foundation (FSF), founded in 1985, supports the ethic of Free Software, which is embodied in the GNU General Public License (GPL). The FSF defines free software as a software licensed so that it supports four freedoms. The first and fourth freedoms are pertinent to...
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...Mohammed Raafat Mohammed Dubai - P. O. Box 9400 Tel: 04- 343 4444 ~ Fax: 343 3393 Mohammed_Raafat@emarat.ae Mobile: 050- 355 1526 CAREER OBJECTIVE To utilise my present customer service and communication skills in the implementation Office Administration and aiming to enhance profitability & service quality. As a self-starter and enthusiastic individual I look forward to a challenging yet rewarding career and to be an instrumental part of your corporation business team whenever development and enhancement are involved. PERSONAL DATA Date of birth: 08 – 02 – 1977 Place of birth: Egypt Marital Status: Married Driving License: Valid UAE D/L WORK HISTORY Apr 2003 – Till now Shamil VTC Administrator, Emirates General Petroleum Corporation “Emarat” * Working in Shamil Vehicle Testing and Registration, handling customers complains and applying all of RTA and MOI legalities. * Reporting correspondences with Ministry Of Interior, RTA, Northern Emirates Traffic Dep and all other related parties in both Arabic & English. * Documentation for all of VT Centers layouts, Etisalat site projects and all related documents concerned in launching new Shamil sites. * Organizing meetings between Emarat managers and other companies i.e. IT companies, Construction companies and Maintenance Companies. * Arranging, coordinating and conducting training courses...
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...GNU’s Not Unix Kelly Elkins POS/355 January 30, 2014 C. Randall Shirley GNU’s Not Unix Many programmers like to modify and improve upon existing systems and programs. How are they able to do it legally? This paper will explain just how it is possible due to the GNU project. To start, I will explain who developed the GNU project, and what it is. Next, I will tell you why it was necessary. Lastly, you will hear what revisions have been made to GNU and why. GNU According to Stallings (2012), in 1983 Richard Stallman started a development project; by 1985 he published the GNU Manifesto. GNU is an acronym for GNU’s Not Unix. The GNU project is a free software set of packages and tools for developing a UNIX-like operating system. He also formed the Free Software Foundation (FSF). His goal was to encourage the free exchange of software source code and the free use of that software. Instead of copyrighting software, the FSF “copylifts” the software, this makes sharing and improvement possible among programmers. The GNU General Public License (GPL) allows copylefting and is a common license for releasing free software. The GPL requires that the source code be distributed with any binaries and that any changes made to the source code be released under the same GPL license. FSF’s goal is stable, platform-independent software that is free, high quality, and embraced by the user community. FSF’s GNU project provides tools for software developers, and...
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...Operating Systems Analysis Florin M. Petrutiu POS/355 September 3, 2012 Karen Clark Operating Systems Analysis As the Internet expanded and basically became the engine that runs the world in terms of communications, the need for robust, secure and efficient servers to serve it increased. Over time three main server operating systems have emerged to fill that role. These operating systems are: Microsoft Windows Server, Linux, and Unix. Microsoft Windows Server Microsoft’s Windows Server product line is not quite as recognized as a web server; however, it is one of the most used products on the Internet for other services such as Terminal Service, email, and even telephony. While most of the world’s websites are hosted on Linux machines, Windows Server is positioning itself to be the operating system of choice when it comes to cloud computing with its newest edition called Windows 2008 RT and the Hyper-V technology. Together with improvements their web application platform, such as improvements in administration, diagnostics, development, application tools and lower implementation costs, Microsoft Server is poised to gain momentum in web hosting usage as well (Microsoft, 2008). Windows Server is closed source and only available by purchase from Microsoft. Support for Microsoft Windows is available via service contracts or per incidence; however, due to the wide availability of trained personnel supporting it should not become an issue for...
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...Open Source and Closed Source Operating Systems POS/355 Jim W November 3, 2013 History repeats once again and proves that the saying, (two heads are better than one) continues to be true! The movement for the collaboration of the thinkers, inventors, and creators; to come together and share ideas and concepts that advance the development of mature and immature open source code is here to stay. The original hackers from the 1950’s (computer enthusiasts’) at MIT’s Tech Railroad Club left their programs in drawers for others to work on. This concept of sharing and developing source code for a wide range of functionality continues to enable programmers and students to use source code as a learning tool that sparks worldwide innovation! Open Source operating systems are usually free OS’s that can be manipulated via the source code format rather than the compiled binary code format, which is only available by closed source code. There are quite a few different open source code providers with the three most popular being GNU/Linux, BSD UNIX, and Solaris. Not only did the GNU/Linux open source operating system serve the standard OS features and function, it also produced many UNIX-compatible tools, including utilities, compilers and editors, but never released a kernel. The advantage of collaboration of the open source OS, Linus Torvalds, a student from Finland released a rudimentary UNIX-like kernel using the GNU compilers and tools and invented contributions worldwide. This...
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...Open and Closed Source Operating System Comparison POS-355 Open and Closed Source Operating System Comparison Open and Closed Source are the two model of how most software is distributed. The open source code is that exactly, free open-sourced code. Meaning the core functions of the written code are given to a potential developer and that developer is able to manipulate, add to, or change any of the functions of the code. This holds true from the basic core functions or the code to small additional code snippets. FOSS or free and open source software do not typically limit or inhibit the use of the software. However with all of this free distribution, there can be some open sourced software that might have license-based restrictions or redistribution. These restrictions are not overwhelming though. The software can be re-distributed for free, after a developer has modified the code, as long as credit is given to the original manufacturer. FOSS also allows for the code to be modified and then re-compiled, so it can be sold as a complete project. Some examples of this type of re-distribution is Red Hat Inc. Red Hat Inc. takes different pieces of code, pieces it together into a really nice and user friendly interface, and then Red Hat re-distributes this re-compiled code as Red Hat Linux. There have many different flavors and iterations, but as long as Red Hat gives credit in the development to the originally creator, there is no problem with Red Hat re-distributing this...
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...Linux Operating System Mark Stansbery POS/355 Alicia Pearlman May 5, 2012 Linux is an operating system just like Windows, and MAC OS, but more along the same lines of the UNIX operating system, because they have some of the same features. Out of the three most popular operating systems, Linux is surprisingly enough is the least popular. It is growing in popularity as more and more systems start to use it, but it still has a long way to go. The information that follows will give some of the history behind Linux and the features, benefits, and drawbacks to the system. In 1986, Linus Torvalds began to learn, quite extensively, hardware programming to help him with his Sinclair computer. He developed a floppy controller driver as well as a programming tool to help him with his efforts to better understand and improve the performance of his machine. In 1991, Torvalds got his first 386-Intel based PC, which ran a version of UNIX called Minix. Minix was developed as a learning system and was very popular in the universities. Torvalds found out very quickly that he did not like the Terminal emulator that was provided, and since the source code for Minix was open source, he began a project to develop his own code to design an improved emulator that provided more functions especially on a hardware level. As he further developed the code and more functionality was added Torvalds decided that his design was more on the lines of an operating system instead of just a utility...
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...Windows Memory Management, Process Management, File Management, Security Jose Rodriguez POS/355 July 25, 2015 Yevgeniy Tovshteyn Windows Memory Management The Widows 32-bit OS adds a virtual memory system, which is based on a flat 32-bit address space. The 32-bits of address space converts into the 4GB of virtual memory. The 4GB is the amount that can be accessed by a process. The Windows operating system has Kernel-mode and User-mode memory ("Memory Management 101", 2007). If you exceed the memory limit you will get an "out of virtual memory" error and this would show even though you have a lot of physical memory. The Kernel space is the system space portion of the address space in the OS and kernel-mode drivers reside. This is where only the kernel-mode can access this space. The User-mode can only access data that is within their own process ("Need More Memory? Getting Started With Windows Memory Management", n.d.). This means that the User-mode threads cannot have access to data from another process space directly and it's not able to access the system space directly. The interesting thing about the kernel-mode drivers is that they are trusted by the OS and is able to access both the kernel and user space ("Memory Management 101", 2007). Windows Process Management In process management each process provides a measure to execute a program. The process management has an independent virtual address space that contains both data and code that are protected. Each process...
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...years, retail has become one of the fastest growing sectors in the Indian economy. ICT has changed modern business practice, making collaborative supply chain management possible.The paper evaluates the role of ICT in the operations of retail organization. The purpose of this paper is to address the critical role-play of Information Technology and IT enabled Services (ITeS) in Retail sector, which is booming in India, and a lime-light into security concerns and other important areas such as system integration, a right business intelligence (BI) solution, and technology for sales & customer care, etc.Large and medium retail houses need to look at an efficient integration with external and internal functional participants (Suppliers to POS), thus need of smart and secured networking. People and training them is also an integral part of the total infrastructure management, therefore technology advancement is considered to be cost effective and just-in-time-update. Keywords: Store operations, Information technology in retail store ,Supply Chain Management (SCM), Customer Relationship Management (CRM),IT enabled services. Introduction: Retailing is a “technology-intensive industry. It is a well-known fact that the retail industry always works on razor thin margins and the key to survival lies in optimization of resources both in space and time dimensions as well as maximization of customer satisfaction. Successful retailers today work closely with their vendors to predict consumer...
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...Course Related 2 Virtual Expert 2 JSB Inc. 2 James S. Black (Company founder) 2 Abigail Foley (Senior vice president of Business Development) 2 Mark Thompson (Business Development Manager) 2 Major Business Functions (In JSB) 3 Manufacturing 3 Sales and Marketing 3 Human Resources 3 Finance and Accounting 3 Terms 3 Information vs Data 3 Digital Manufacturing 3 DELMIA 3 POS 3 Inventory Management System 3 Mapping Technology 3 Electronic Business / E-Business 3 Electronic Commerce / E-Commerce 3 E-Government 3 Problem Solving 3 Critical Thinking 3 Steps 3 1. Problem Identification 3 Dimensions of Business Problems 3 Organizations 3 Technology 3 People 3 Examples 3 2. Solution Design 3 3. Solution Evaluation and Choice 3 4. Implementation 3 Analyzing Performance 3 Case Study Analysis 3 Identify the most important facts surrounding the case 3 Identify key issues and problems 3 Specify alternative courses of action 3 Evaluate each course of action 3 Recommend the best course of action 3 Information Systems 3 Definition 3 Information Technology versus Information Systems 3 Information Technology 3 Information System 3 Dimensions 3 Organization 4 Technology 4 Components 4 Hardware 4 Software 4 Data Management Technology 4 Networking and Telecommunications Technology 4 Function 4 People 4 Functions 4 Input 4 Processing 4 Output 4 Types 4 Strategic-level systems 5 ...
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...|[pic] |Syllabus | | |College of Information Systems & Technology | | |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 ...
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...The Association of Business Executives Postgraduate Diploma MFRP1209 1.43 MFRP Management of Financial Resources and Performance morning 4 December 2009 1 Time allowed: 3 hours. 2 Answer any FOUR questions. 3 All questions carry 25 marks. Marks for subdivisions of questions are shown in brackets. 4 No books, dictionaries, notes or any other written materials are allowed in this examination. 5 Calculators, including scientific calculators, are allowed providing they are not programmable and cannot store or recall information. Electronic dictionaries and personal organisers are NOT allowed. 6 Present value and annuity tables are included in this question paper on pages 7 and 8. Formulae can be found on pages 9 and 10. 7 Candidates who break ABE regulations, or commit any misconduct, will be disqualified from the examinations. 8 Question papers must not be removed from the Examination Hall. MFRP1209 © ABE 2009 D/502/3188 Answer any FOUR questions Q1 Three companies A, B and C are engaged in the same type of business in the UK. The business is in a highly sensitive and cyclical market and past experience shows that earnings before interest and tax are liable to fluctuate by up to 25% in either direction from the current level. Each company has almost identical total funds employed and profitability, but significantly different capital structure. The capital structure of the three companies is as follows: Company A 2,700,000 Ordinary Shares (Nominal value of 40p)...
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