Operating Systems Assignment #5 Of Chapter 4 Eighth Edition of Operating System Concepts by Avi Silberschatz Peter Baer Galvin & Greg Gagne 2009 4.1 Provide two programming examples in which multithreading does not provide better performance than a single-threaded solution Answer: (1) Any kind of sequential program is not a good candidate to be threaded. An example of this is a program that calculates an individual tax return. (2) Another example is a "shell" program such as
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Jessica Milan ENG 103 Compare and Contrast The Social Network Compare and Contrast Everyone has that friend where they are really close yet they are completely different people‚ kind of like oil and water. They can have similarities but even they’re similarities are a little different. That is the relationship between Mark Zuckerburg and Eduardo Saverin‚ Founder and Co Founder of Facebook‚ and bestfriends. Mark and Eduardo have many differences but they also have similarities. They are similar
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UUM COLLEGE OF ARTS AND SCIENCES UNIVERSITI UTARA MALAYSIA No. Information on Course 1. Course Name : OPERATING SYSTEM 2. Course Code: STIK2044 3. Name(s) of Academic Staff: HATIM MOHAMAD TAHIR ROOM: SOC3070 OFF:928 5193 EMAIL: HATIM@UUM.EDU.MY FB: HATIM 4. Rationale for the inclusion
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Chapter 2 – Operating System Overview TRUE/FALSE QUESTIONS: 1) An OS should be constructed in such a way as to permit the effective development‚ testing‚ and introduction of new system functions without interfering with service. (True) 2) The OS masks the details of the hardware from the programmer and provides the programmer with a convenient interface for using the system. (True) 3) The ABI gives a program access to the hardware resources and services available in a system through the user
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is used to scan ports for networks. A scenario where it can be used is to scan the ports of a network to know exactly which ports are opened or closed thus allowing a network administrator to reduce the vulnerability of its network. 2. Which application is used for Step 2 in the hacking process to perform a vulnerability assessment scan? Nessus. 3. What must you obtain before you begin the ethical hacking process or penetration test on a live production network‚ even before performing the
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COMPARISO BETWEEN DIFFERENT TYPES OF OPERATING SYSTEMS These tables provide a comparison of operating systems‚ listing general and technical information for a number of widely used and currently available PC and handheld (including smartphone and tablet computer) operating systems. The article‚ usage share of operating systems provides a broader‚ and more general‚ comparison of operating systems that includes servers‚ mainframes and supercomputers. Because of the large number and variety of
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its lifetime. Operating system takes care of selecting the processes from these queues in some fashion. Selecting process is done by the the appropriate scheduler. Types of scheduling: Short - term (or) CPU Scheduler Medium – term Long – term (or) Job Scheduler Short – Term Scheduler: Short term scheduler selects the processes that are ready to execute and allocates CPU to one of them. Medium – Term Scheduler: Medium term scheduler is introduced by some operating systems such as time sharing
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compute how long it will take to satisfy the following requests: 4‚ 40‚ 11‚ 35‚ 7‚ and 14 Using the LOOK policy All request are present in the wait queue Ignore rotational time and transfer time; just consider seek time 1. How does the result compare with Fig. 7.16? START FINISH TRAVELED 5 10 15 20 25 30 35 40 15 14 1 X
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Operating Systems Task 1 An operating system (OS) is a part of software which manages the operation of a computer. It controls the hardware and software of a computer‚ without it a computer would be useless. DOS Disk operating system (DOS) was released in 1981. It will load from a floppy disk each time a computer starts. DOS uses a command line interface. Command line interface can be difficult to use if you aren’t trained or experienced in using it. DOS is the predecessor to windows. DOS is
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Operating System An operating system (OS) is a collection of software that manages computer hardware resources and provides common services for computer programs. It is a program designed to run other programs on a computer. The operating system is an essential component of the system software in a computer system. Application programs usually require an operating system to function. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software
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