CS 2203: Operating Systems Centre for Advance Studies in Engineering (CASE) Hand-out 8: Lab 08 Instructions March 2014 Computer Science Department Instructor: Shehreyar Rashid Lab 8: Introduction to Java and Sockets Objectives Write‚ compile‚ and execute Java programs in Linux using command line. Use an IDE to write‚ compile‚ and execute Java programs in Linux. Learn to write client-server application using Sockets. Credits: This lab uses material from Silberschatz‚ Galvin
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Operating System UNIT - 1 Roadmap • What is an Operating System? • • • • • • • • Operating System Objectives/Functions The Evolution of Operating Systems Major Achievements Structuring methods Design of API’s Interrupts Device Organization User/System state Transition What is an Operating System? • A program that acts as an intermediary between a user of a computer and the computer hardware. OR • A program that controls the execution of application programs. • Kernel – the one program
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File Server - Database Server - Transaction Server – Groupware Server - Object Server – Middleware - Building Blocks. Client Server Operating System: Anatomy of server program - Server needs from OS - Server Scalability - Client Anatomy - Client need from OS - Client OS trends - Server OS trends. Basic Concepts of Client/ Server Computing Client–server computing: Client–server computing is a distributed computing model in which client applications request services from server processes
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small brokerage house that enables its clients to buy and sell stocks over the Internet‚ as well as place traditional orders by phone or fax. DRUB has just decided to offer a set of stock analysis tools that will help its clients more easily pick winning stocks‚ or so Fred tells you. Fred’s information systems department has presented him with two alternatives for developing the new tools. The first alternative will have a special tool developed in C++ that clients will download onto their computers
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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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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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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 executed‚ it is treated by H/W as a S/W interrupt. Timer protects CPU resource from getting stuck by a user program. To ensure OS maintains
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Lab 3 worksheet CONFIGURING NETWORK CONNECTIONS Exercise 3.1 Using the Network and Sharing Center Overview On a Windows 7 computer‚ the Network and Sharing Center provides access to most of the operating system’s networking tools and configuration parameters. In Exercise 3.1‚ you examine the current Sharing and Discovery settings on one of the computers that will become part of the lab network. Completion time 10 minutes 8. In Table 3-1‚ note the current state of the advanced Sharing
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An Introduction To Modern Mobile Operating Systems by Haroon Q Raja on May 14‚ 2011 13 Comments Over the past decade‚ smartphones have taken the world by storm and recently‚ tablets have entered into the arena as well. These mobile devices are having a significant impact on our lives and are in fact redefining the way we access information and communicate with others. This is due to not only the hardware but the specialized software that these devices run and most importantly‚ their operating
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publications and other professional conferences and journals. He is a coauthor of the textbook Database System Concepts. He has also written Op-Ed articles for the New York Times‚ the Boston Globe‚ and the Hartford Courant‚ among others. Peter Baer Galvin is the chief technologist for Corporate Technologies (www.cptech.com)‚ a computer facility reseller and integrator. Before that‚ Mr. Galvin was the systems manager for Brown University’s Computer Science Department. He is also Sun columnist for ;login:
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