Introduction to Computer Networks Spring 2013 Chapter 1 Data Communications and Networks Overview and Protocol Layers Dr. Çağrı Güngör 1 Basic Info about the Course • Course Content (tentative): — Computer networks; network architectures; protocol layers; TCP/IP; principles of Internet; wireless networks; introduction to network management‚ etc.. • Course Objectives: — Understand widely known network protocols‚ communication architectures‚ and wireless networks‚ — Learn TCP/IP and protocol
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Chapter 2 Network Models Copyright © The McGraw-Hill Companies‚ Inc. Permission required for reproduction or display. Chapter 2: Outline 2.1 Protocol Layering 2.2 TCP/IP Protocol Suite 2.3 OSI Model 1.# 1 Chapter 2: Objective The first section introduces the concept of protocol layering using two scenarios. The section also discusses the two principles upon which the protocol layering is based. The first principle dictates that each layer needs to have two opposite tasks
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center to the store and also within the store. Since transportation can be as much as one-half to two-thirds of the total cost of distributing product it only makes sense to drive is in as many efficiencies into your transportation network as you possibly can. The 1st strategy is to limit the margin that would have to be paid to a third-party providing that service. The 2nd strategy is controlling the fleet my company can control the quality and timing of the service to move the freight
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CHAPTER TWO NETWORKING SYSTEMS AND LOCAL AREA NETWORKS (LAN) A network is a system of two or more computers that are connected in some manner. Each computer on the network has access to the files and peripheral equipment (such as printers or modems) on all the other computers on the network. The origin of local area networks can be traced‚ in part‚ to IBM terminal equipment introduced in 1974. At that time‚ IBM introduced a series of terminal devices designed for use in transaction-processing
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CHAPTER 15 Wide-Area Wireless Networks (WANs) — GSM Evolution 15.1 Introduction Third-generation (3G) wireless systems [2‚3‚9] offer access to services anywhere from a single terminal; the old boundaries between telephony‚ information‚ and entertainment services are disappearing. Mobility is built into many of the services currently considered as fixed‚ especially in such areas as high speed access to the Internet‚ entertainment‚ information‚ and electronic commerce (e-commerce) services. The
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The Social Network (2010) November 15‚ 2011 Directed by David Fincher. Screenplay by Aaron Sorkin. From the book‚ Accidental Billionaires‚ by Ben Mezrich The Social Network is an adaptation of a book about the amazing story behind the rise and rise of Facebook. It is a story of friendship and rivalry‚ with a little conspiracy‚ bad behaviour‚ perhaps betrayal or just plain dirty tricks. You’ll find lots out there about this film including this review from Rex Baylon’s Film Expression which specifically
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Network Bandwidth Predictor (NBP): A System for Online Network performance Forecasting Alaknantha Eswaradass‚ Xian-He Sun‚ Ming Wu Department of Computer Science Illinois Institute of Technology Chicago‚ Illinois 60616‚ USA {eswaala‚ sun‚ wuming}@iit.edu Abstract The applicability of network-based computing depends on the availability of the underlying network bandwidth. However‚ network resources are shared and the available network bandwidth varies with time. There is no satisfactory solution
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Cryptographic Authentication for Real-Time Network Protocols1‚2 David L. Mills3 Abstract This paper describes a new security model and authentication scheme for distributed‚ real-time network protocols used in time synchronization and event scheduling applications. It outlines the design requirements of these protocols and why these requirements cannot be met using conventional cryptography and algorithms. It proposes a new design called autokey‚ which uses a combination of public-key cryptography
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the Distribution Network in a Supply Chain Sunil Chopra Kellogg School of Management‚ Northwestern University 2001 Sheridan Road‚ Evanston‚ IL 60208‚ U.S.A Tel: 1-847-491-8169; Fax: 1-847-467-1220; e-mail:s-chopra@kellogg.northwestern.edu Abstract This paper describes a framework for designing the distribution network in a supply chain. Various factors influencing the choice of distribution network are described. We then discuss different choices of distribution networks and their relative
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argument. Comment [T2]: This is an example of a SUB-HEADING. Subheadings help to show the structure of your essay. However‚ they should be used fairly sparingly in essay writing. Background to social networking The idea of a ‘social network’ is not new. A social network in fact refers to any structure made up of
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