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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Peer-to-Peer Networks for Content Sharing Choon Hoong Ding‚ Sarana Nutanong‚ and Rajkumar Buyya Grid Computing and Distributed Systems Laboratory‚ Department of Computer Science and Software Engineering‚ The University of Melbourne‚ Australia (chd‚ sarana‚ raj)@cs.mu.oz.au ABSTRACT Peer-to-peer (P2P) systems are popularly used as “file-swapping” networks to support distributed content sharing. A number of P2P networks for file sharing have been developed and deployed. Napster‚ Gnutella
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Network Neutrality “We are all now connected by the Internet‚ like neurons in a giant brain.” –Stephen Hawking. This quote by Stephen Hawking is true now but some claim the internet may be in danger. A new policy the United States is trying to adopt is this set of standards called “Net Neutrality”. These standards would push internet providers to keep the internet neutral‚ and not allow companies to pay providers to speed up their connection and make it a priority over others. People have recently
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HIV Prevention with Positives in Thailand: Ethical Dilemma of HIV Status Disclosure in intimate relationship. Abstract Every year‚ there are about ten thousand new HIV infection cases in Thailand. The majority of new HIV transmissions in Thailand have changed from commercial sex to intimate relationships while HIV prevention generally focuses on self protection and universal precaution. In 2003‚ Center for Disease Control and Prevention recommend to integrate HIV preventive measure into routine
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information from across the world‚ and can be used for entertainment while relaxing. In other words‚ social networking opens up different opportunities in which you will be satisfied. Meanwhile‚ being a part of a social networking site has many disadvantages. Some of those disadvantages can be risk of fraud or identity theft‚ cyberbullying‚ and it can be such a waste of time. Besides the advantages and disadvantages of social media‚ many individuals have an account for at least one social network. To those
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The Advantages Of Social Networking Nowadays‚ social network plays an important role in human life. With the major improvement in sciences and technology development‚ the social network has gained popularity amongst the people especially teenagers in the 21st century. Social networking is defined as the connection with friends‚ family‚ classmates‚ customers and clients with the use of internet-based social media programs (Investopedia‚ 2013). The social networking site consists of Twitter‚ Facebook
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Our topic is that social networks encourage people to have good “interpersonal skills”. According to the research‚ the most popular method of communication among teens is social network. This format is an opportunity for teenagers to practice and develop social skills. Firstly‚ social network provides a virtual place to spend time and share thoughts and objects with personal meaning‚ such as pictures and stories‚ and remain closely connected with friends regardless of geographic distance. For example
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3 The Roman Empire 4 Medieval Europe 4 Early Modern Era 5 John Loudon McAdam 6 The 20th Century 6 History of the Road Transportation Network 1794. You may ask‚ what is the significance of this date? In 1974‚ the first modern road transportation network was established in Great Britain‚ allowing the first mail coach service between Bristol and London that ran on a timetable. However‚ roads have been around for centuries. So how is this relatively
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CSFI All Rights Reserved 2011. The Cyber Security Forum Initiative (CSFI) http://www.csfi.us/ and NATO Cooperative Cyber Defence Centre of Excellence (CCDCOE) http://www.ccdcoe.org/ will be presenting a unique workshop on the online recruitment of volunteers for enhancing the instruments of cyber power of nations and organizations. This is a great opportunity to learn more about methodologies‚ lessons learned‚ deliverables‚ coordination and volunteerism in cyberspace. The workshop will take
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Relation between Housing Quality and Distance from CBD The housing quality of the First World increases against the distance from the central business district (CBD)‚ while the Third World is just the opposite. In the concentric-zone model (1942)‚ Chicago was divided into five 5 zones‚ with the zone of working men’s home in the inner city and residential zone with better‚ private housing in the outer suburbs (as cited in Pacione‚ 2009‚ p.141). Even the model itself is dated‚ the illustration that
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