This page intentionally left blank Operating Systems in Depth This page intentionally left blank OPERATING SYSTEMS IN DEPTH Thomas W. Doeppner Brown University JOHN WILEY & SONS‚ INC. vice-president & executive publisher executive editor executive marketing manager production editor editorial program assistant senior marketing assistant executive media editor cover design cover photo Donald Fowley Beth Lang Golub Christopher Ruel Barbara Russiello Mike Berlin
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professors. 2 Comparison of mobile OS ABSTARCT It ’s easy to have tunnel vision when you ’re choosing a smartphone with Nokia‚ Apple‚Windows and Google ’s Android each holding a healthy slice of the market share‚ but which one represents the best all-round value?Nokia ’s Symbian^3 has the benefit of being easy to use and familiar to most‚ and with its recent makeover looks every inch the modern smartphone platform. Google ’s Android is easy and understandable and has the added bonus of
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1. Introduction to Operating System:- Computer is a somewhat complex machine. The world has become accustomed to so many choices. One of the major choices in the modern era is the “Operating System (OS)”. Operating systems are the central software component to any computer. The main brands of operating system are; Windows Mac OS‚ Sun Solaris‚ UNIX‚ DOS and Linux. Each brand has its own take on what makes up an operating system. Windows is the most commonly used operating system around the world.
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STUDENT’S MANUAL TO ACCOMPANY OPERATING SYSTEM CONCEPTS SEVENTH EDITION ABRAHAM SILBERSCHATZ Yale University PETER BAER GALVIN Corporate Technologies GREG GAGNE Westminster College Preface This volume is a student’s manual for the Seventh Edition of Operating System Concepts‚ by Abraham Silberschatz‚ Peter Baer Galvin‚ and Greg Gagne. It consists of answers to the exercises in the parent text. Although we have tried to produce a student’s manual that will aid all of the users
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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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Operating System Comparisons PRG/355 February 4‚ 2013 Operating System Comparisons Table of Contents Introduction 3 Memory Management 3 Process Management 6 File Management 7 Security 8 Conclusion 9 References 11 Introduction An operating system (OS) is software that manages the hardware and software resources of a computer system. Basically an OS is a set of libraries or functions which programs may use to perform specific tasks relating to interfacing
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2050243-MAJOR IX MODERN OPERATING SYSTEM 1. The operating system is the most important program that runs on a computer. Every general-purpose computer must have an operating system to run other programs. Operating systems perform basic tasks‚ such as recognizing inputfrom the keyboard‚ sending output to the display screen‚ keeping track of filesand directories on the disk‚ and controlling peripheral devices such as disk drives and printers. 2. The kernel is a program that constitutes the
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IN THE UNITED STATES | Official language(s) | None at federal level | Main language(s) | English (82.1%)Spanish (10.7%)Other Indo-European (3.8%)Asian and Pacific island languages (2.7%)Other languages (0.7%) | Indigenous language(s) | Navajo‚ Central Alaskan Yup’ik‚ Dakota‚ Western Apache‚ Keres‚ Cherokee‚ Zuni‚ Ojibwe‚ O’odham‚ etc… | Main immigrant language(s) | Spanish‚ Chinese‚ French‚ German‚ Tagalog‚ Vietnamese‚ Italian | Sign language(s) | American Sign LanguageHawaii Pidgin Sign
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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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BP By: Anna DeHart About BP “BP is one of the worlds leading international oil and gas companies‚ providing its customers with fuel for transportation ‚ energy for heat and light‚ retail services and petrochemical products for everyday items” In 1908 oil was found in a rugged part of Persia after a long search. Things we do are: • Find oil and natural gas • Extract it from hard to reach places • Move it to sea or land • Make what is needed from it • Generate low carbon power • Build construction
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