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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Computer Networks NETWORKING CONCEPTS Network A network is basically an interconnection of various points to make a connected system e.g Road‚ Telephone‚ Social Data Network A computer network therefore refers to an interconnection of computers and other peripherals by use of a communication link Peer to Peer Networks In a peer-to-peer network‚ all computers are considered equal; they all have the same abilities to use the resources available on the network. Peer-to-peer networks are designed
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the African continent in three stages. The first stage which is early Christianity‚ makes Christianity in Africa qualify to be as old as Christianity itself. The second stage involves the Portuguese patronized Christianity in Africa. The third stage of the Christian extension in Africa is marked by circumstances of contemporary modern times. Though the concept of Christianity in Africa is as old as Christianity itself‚ there are very few figures in its long history that are more influential
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1 Multi-Channel Scheduling and Spanning Trees: Throughput-Delay Trade-off for Fast Data Collection in Sensor Networks ¨ Amitabha Ghosh‚ Ozlem Durmaz Incel‚ V. S. Anil Kumar‚ and Bhaskar Krishnamachari Two primary factors that affect the data collection rate (throughput) and timeliness (delay) are: (i) efficiency of the link scheduling protocol‚ and (ii) structure of the routing tree in terms of its node degrees and radius. In this paper‚ we utilize multiple frequency channels and design an
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More trade routes were made‚ allowing trade to erupt all around the world. Trade became an important force of change and had many effects on society and foreign relations. From 1300-1800 many European countries wanted to expand and make their lands more bountiful with more resources and goods from other places. Countries wanted what other countries had; for example different types of food and spices. This desire for new goods and resources drove countries to explore new lands and trade with other
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Colonialism and Imperialism are one of the core foundations of the Atlantic Trade System that occurred between the 14th and 19th centuries. Colonialism is the process of a group of external settlers‚ in this case settling in Africa and claiming the land for their own. Colonialism is the control or governing influence of a nation over a dependent country‚ territory‚ or people. Colonialism refers to the set of practices and policies implemented by the imperial agents to obtain and maintain control
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Indian Ocean region trade had many changes and continuities between 650 and 1750 CE. Economically‚ Indian Ocean trade stayed the same with its spread of goods from region to region‚ but changed because of the ways goods were traded along this trade route. Culturally‚ the Indian Ocean trade stayed the same because of that same continuous spread of ideas and religion‚ and changed because of the diffusion of the religions already dominant in regions. Politically‚ the Indian Ocean trade stayed the same in
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Africa In Hollywood movies‚ Africa is not depicted to be a safe or pleasant place to live and the people are stereotyped to be uncivilized or a warlord. In one of the scenes at the end of Independence Day‚ when we see that the invading army of aliens has finally been defeated by a collaborative effort by the entire world (but the film mostly focusses on the US)‚ and we get a montage of the wreckage on different continents. America gets a high-tech military base‚ Australia gets a modern city scape
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Network Security Paper University of Phoenix NTC/360 August 9‚ 2005 Installing firewall or anti-virus software on enterprise workstations can help prevent some of the security problems the Internet can cause; but not everything. By understanding the different Open Systems Interconnect (OSI) levels and security threats involved with each one of them‚ it is easier to plan a strategy to combat security problems. Purpose and Scope To cover all areas I have listed the network security measures
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INTRODUCTION In today’s modern world computer networks are the basic source of information exchange for all types of businesses. Different technologies are used within the context of networking depending on the requirements of an organization. Ethernet is off course the best technology for the “local area network” (LAN)‚ but when the organization spread their business to much longer distances (cities) then WAN technologies need to be deployed to keep the business running. The selection of an appropriate
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