...Tree Ntework In telecommunication networks, a tree network is a combination of two or more star networks connected together. Each star network is a local area network (LAN) in which there is a central computer or server to which all the workstation nodes are directly linked. The central computers of the star networks are connected to a main cable called the bus. Thus, a tree network is a bus network of star networks. The illustration shows a tree network with five star networks connected to a common bus. The workstations are shown as small spheres, the central computers of the star networks are shown as larger spheres, connections within star networks are shown as short lines, and the bus is shown as a long, heavy line. The connections can consist of wire cables, optical fiber cables, or wireless links. The tree network topology is ideal when the workstations are located in groups, with each group occupying a relatively small physical region. An example is a university campus in which each building has its own star network, and all the central computers are linked in a campus-wide system. It is easy to add or remove workstations from each star network. Entire star networks can be added to, or removed from, the bus. If the bus has low loss and/or is equipped with repeaters, this topology can be used in a wide area network (WAN) configuration. In a tree network, a cable failure in one of the star networks will isolate the workstation that it links to the central computer...
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...CASE 3: SIX SIGMA AND CISCO 1. Had a cross functional global team in engineering manufacturing and other areas. 2. Developed project “Viking” – Router for broadband service providers that would break power in power and speed. 3. In Nov 2007 they all dialled in together to seek an execution commit from senior mgmt in manufacturing. 4. Challenges of Viking Project - Company’s most complex new product introductions ever - Formal Announcement within a year – this would give it limited time to line up manufacturing, supply chain and marketing arrangements. - wanted to outsource this product in low cost location China, a departure from its previous practice of outsourcing a new complex product in US and then shifting to China. - Could its contract manufacturer Foxconn Technology Group handle such a technically complex product from day 1 in China (it hadn’t done something like this before)? - Immense co-ordination required at global level between Cisco teams and Foxcom and headquarters. 5. Company background – Cisco - First Product was multi protocol router – networking gear – telecommunications and sales to broad band service providers – expanded to consumers – leader in network technology for the Internet age in 1995.It grew rapidly during 1980s and 1990s, became public; Became world’s most valuable company in 2000 * By early 2000s Cisco had expanded form Routers and Switches to home networking gears, security technology, web conferencing products, and digital...
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...Essay Number Two: Social Networking: Good or Bad for Our Society? By Christy Clark ENG204 - Advanced Writing July 23, 2012 Online social networking sites (SNSs) are web-based services that allow individuals to construct public or semi-public profiles, connect with other users, and traverse their list of connections and those made by others within the system. (Baker & White, 2011) Now that SNSs are defined, some examples of these sites are Facebook, MySpace, Twitter, LinkedIn, The Google+, Orkut, Tagged, and Badoo. Some people love them to the point that they consider themselves addicted and others either do not use them or rarely use them. SNSs have impacted our technological world in positive and negative ways. An example of a specific way that SNSs have been positively affected our society is a woman that was adopted reunited with her biological brother after 30 years. She found him through Facebook; they made arrangements to meet, and to this day have been catching up on lost years. Another case that proves Facebook has had positive impact is when a natural disaster occurs; having access to a SNS is another form of a communication outlet. Some post missing children which could bring a positive outcome through the speed of communication that happens over SNSs. Even alerts can be issued to warn many people in an extended area. This could save lives as well. On the other hand, SNSs have caused negativity within a community. There are some people that simply cannot handle...
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...VOCATIONAL HIGHER SECONDARY TEACHER’S SOURCE BOOK COMPUTER SCIENCE FIRST YEAR Government of Kerala Department of Education SCERT - 2005-06 STATE COUNCIL OF EDUCATIONAL RESEARCH AND TRAINING Vidyabhavan, Poojappura, Thiruvananthapuram-12 Prepared by: State Council of Educational Research & Training (SCERT) Vidyabhavan, Poojappura, Thiruvananthapuram -12 Kerala E-mail:scertkerala@asianetindia.com Type setting by: SCERT Computer Lab. © Government of Kerala Education Department 2005 P REFACE Dear Teachers, Computer Science is concerned with the gathering, manipulation, classification, storage and retrival of knowledge. Understanding Computer Science, is necessary because of its power and influence in modern society. Learning of Computer Science should be activity based, process oriented, student-centred, environmental based and life oriented. The approach to learning is based on five domains of science: Knowledge domain, process domain, application and connection domain, domain of attitudes and values and creativity domain. But we know that most of the present vocational higher secondary teachers are not familiar with this paradigm. Hence for the first time we are introducing sourcebooks for all the subjects in the vocational higher secondary curriculum. This source book for computer science aims to provide guidelines to the teachers of our state to change their pedagogy from the conventional content-based approach to the process...
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