Operating System Basics Functions of Operating Systems • An operating system is the software on a computer that manages the way different programs use its hardware‚ and regulates the ways that a user controls the computer. • Provide a user interface • Run programs • Organized file storage Types of Operating Systems • Real-time operating system – Very fast small OS – Built into a device – Respond quickly to user input – MP3 players
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Components of an Operating System In order to perform the actions requested by the computer’s users‚ an operating system must be able to communicate with those users. The portion of an operating system that handles this communication is often called the user interface. Older user interfaces‚ called shells‚ communicated with users through textual messages using a keyboard and monitor screen. More modern systems perform this task by means of a graphical user interface (GUI) in which objects to be
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Running Head: Operating Systems - Linux Operating Systems - Linux Prepared by Jackie Riddick University of Phoenix November 18‚ 2007 Operating Systems - Linux Brief History. Linus Torvalds created the Linux operating system in 1991 while he was still a student at the University of Helsinki in Finland. He developed and released the Linux kernel under the GNU General Public License so that its source code would be free to all and others could modify it to meet their specific needs. The
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Instructor Resources disc. Principles of Operating Systems: Design & Applications Chapter 1 Introduction to Operating Systems Objectives After studying this chapter‚ the student should: Be able to discuss ways of defining the operating system Understand the different roles the OS plays Have a general picture of the areas of OS responsibility Have a general understanding of the evolution of operating systems 3 Principles of Operating Systems: Design & Applications Objectives
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Associate Level Material Appendix B LAN Operating Systems Scenarios Read the three scenarios below and answer the questions that follow each scenario. 1. You are the network administrator for a new company that has 10 users and that plans to add 5 more users within a year. The files need to be accessed by all 10 users‚ and each user must have different security rights. What kind of network would you install? How would the pieces and components of this network relate to each other? Define
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Operating System | Assignment #1 | | Information System | 2012-03-29 | | 1. What is the purpose of interrupts? What are the differences between a trap and an interrupt? Can traps be generated intentionally by a user program? If so‚ for what purpose? (Chapter 1) Interrupt is that causes a computer processor to temporarily stop executing its current program and execute another program instead‚ finally returning control to the original program. So it prevent that more important task
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Operating Strategy ~ The UNIQLO case~ 1142535b Sachiko Okita Introduction UNIQLO is a Japanese casual wear designer‚ manufacturer and retailer. UNIQLO has been recording good sale‚ they made a new sales record‚ 923‚600‚000‚000yen on 2012. In addition‚ they have wide and various customers‚ old and young‚ men and women‚ family and couples etc. Their sex‚ age and life style is different. The key success factor is “No target customer” In 2013 the CEO of UNIQLO‚ Tadashi Yanai made new concept
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Network Operating Systems vs. MUOS (Multi-User) Characteristics Different methods of Multi-tasking Multi tasking is when the operating system seems to be performing two or more tasks at the same time‚ i.e. MS Word and MS Access‚ however these tasks are not actually running simultaneously as they are actually resident in memory processor is actually switching between tasks at a very high speed‚ therefore each user sees their own task as having priority. One disadvantage can be that the more
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Capitalizing Operating Leases The principal advantages perceived by companies who enter into leases are: • They are able to use the assets in their business without showing the related debt. Companies improve the utilization of their assets via leasing since they can add capacity‚ as needed‚ a lot more easily by leasing rather than committing to own the assets. • They show no interest expense or depreciation in the income statement‚ although both of these are part of the “lease
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The Purpose of an Operating System Professor John St. John COMP 129 – PC Hardware and Software October 2‚ 2014 Some professionals in the Information Technology (IT) field might describe the Operating System (OS) of a Personal Computer (PC) as its software brain. Jean Andrews‚ Ph.D.‚ describes an OS this way: “An operating system is software that controls a computer. It manages hardware‚ runs applications‚ provides an interface for users‚ and stores‚
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