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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1.5 Modern OS are interrupt driven. Events are almost signaled by the occurrence of an interrupt or a trap‚ which caused either by an error or by a specific request from a user program that an OS service be performed .Dual-mode Operation allows OS to protect itself and other system components whereas Multimode Operation increasingly CPUs support multi-mode operations. System call provides the means for a user program to ask OS to perform OS tasks on the user program’s behalf. When a system callis
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carrying inventory? *a. price discounts b. carrying costs c. ordering costs d. shortage costs 3. The level of inventory at which a new order should be placed is known as the a. lead time b. replenishment quantity *c. reorder point d. service level 4. A restaurant currently uses 62‚500 boxes of napkins each year at a constant daily rate. If the cost to order napkins is $200.00 per order and the annual carrying cost for one box of napkins is $1.00‚ then the optimal order quantity (EOQ)
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Operating system ABCs An operating system‚ or OS‚ is a software program that enables the computer hardware to communicate and operate with the computer software. Without a computer operating system‚ a computer would be useless. Operating system types As computers have progressed and developed so have the operating systems. Below is a basic list of the different operating systems and a few examples of operating systems that fall into each of the categories. Many computer operating systems will
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INTRODUCTION Operating system (OS) is a set of programs that acts as an interface between user and computer hardware. It also manages the internal resources of a computer like control Unit‚ arithmetic logic unit‚ memory unit‚ I/O unit etc. simply we can say that operating system (OS) is a communication channel between the user and the computer machine. It is must for any computer system because the OS is only: The one program that runs at all the times on the computer. The program that
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Case question 1: What are the chief elements of the strategy that Whole Foods Market is pursuing? Whole Food’s chief elements of the strategy are to establish the company as a market leader of natural and organic super markets by differentiating its offering with highest quality naturally preserved food to the world market and become an international brand in every community. However the company is also determined to establish unique value chain activity by recruiting specialized and knowledgeable
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Example 1 Localization strategy of McDonald’s McDonald is using localization strategy in term of choose to localize the language that they use to sell the items especially burger and tries to localize the food itself‚ localization is absolutely necessary to attract customers across nations. One of the examples is McDonald’s localization of its food menu. u. Even though the menu is to a certain degree standardized all over the world‚ but some of items are unique to each country and that taste also
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2/3/2010 CHAPTER 5 Product and Service Strategy and Brand Management Slide 5-1 AFTER READING THIS CHAPTER YOU SHOULD BE ABLE TO: 1. Explain the offering concept and offering mix portfolio. 2. Describe how the marketing manager modifies the offering mix. 3. Identify and describe the stages in the new-offering development process. 4. Identify and describe the stages in the product life cycle. Slide 5-2 1 2/3/2010 AFTER READING THIS CHAPTER YOU SHOULD BE ABLE TO: 5. Explain the
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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 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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