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Operating Systems: Basic Concepts and History Hardware

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Operating Systems: Basic Concepts and History 1Introduction to Operating SystemsAn Operating system is the interface between the user and the ApplicationsOS as juggler: providing the illusion of a dedicated machine with infinite memory and ll tiOperating SystemHardwareVirtual Machine InterfacePhysical Machine Interface2OS as government:protecting users from each other, allocating resources efficiently and fairly, and providing secure and safe communicationOS as complex system:keeping OS design and implementation as simple as possible is the key to getting the OS to workWhat is an Operating System?

Basic Concepts and History 1 Introduction to Operating Systems An operating system is the interface between the user and the architecture. ... ¾Principle: Design tradeoffs change as technology changes. Comparing computing systems from 1981 and 2007 1981 2007 Factor MIPS 1 57,000 57,000 $/SPECInt $100K $2 50,000

  Computing, Technology, History

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