Before you believe what the site says or take action

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Evaluating the content of a website is important. Before you believe what the site says or take action based on the information presented, several questions need to be answered.Who is the author of the article or website sponsor?Is the site biased?Is the information current?Toward what audience is the site geared?Are links available?The same information should exist on at least three different web sites.Internet Clients and ServersThe Internet is a client/server network.Thus, a computer connected to the Internet acts in one of two ways:Client computerUsers connected to the InternetRequests data and web pagesServer computerStores web pages and dataReturns the requested data to the clientInternet backboneIP addresses are the means by which all computers connected to the Internet identify each other.Connecting to the InternetTo take advantage of the resources the Internet offers you need a means to connect your computer to it. Home users have several connection options.Originally, the only means to connect to the Internet was with a dial-up connection. With dial-up connections, you connect to the Internet using a standard telephone line.However, other connection options, collectively called broadband connections, offer faster means to connect to the Internet. Broadband connections include:oDSLoCableoFiber-optic serviceoSatelliteBroadband ConnectionsCable InternetUses coaxial cable and a cable modemFast connection speedSpeed depends on number of usersNot available in all areasDigital Subscriber Line (DSL)Uses telephone linesFaster than dial-up
Does not tie up phone line.Requires special DSL modemNot available in all areasSatelliteUses satellite dish and coaxial cableSlower than cable or DSLExpensiveWireless AccessIncreases mobility and productivityRequires a Wi-Fi hotspotIf device is not wireless-ready, wireless adaptors are available.Aircards provide wireless access through mobile devices when a Wi-Fi hotspot is not available.Dial-Up ConnectionsUse standard telephone lineTie up phone lineRequire a modem to convert analogue and digital signalsSlowest connection speed (56 Kbps)Lowest costModern computers have internal modems built into the system unit.Comparing Internet Connection OptionsDSLAverage download speed of 1.5 MbpsMaximum download speed of 7 MbpsLets you access the internet and talk on the same phone line simultaneouslySpeed drops as you get farther from the phone company's central officeNot available on every phone lineCableAverage download speed of 5 MbpsMaximum download speed of 30 MbpsSpeeds are not dependent on distance from central officeLine is shared with others in the neighborhoodSpeeds may vary due to peak/non-peak usageMight require professional installation if cable is not already presentFibre opticAverage download speed of 20 MbpsMaximum download speed of 50 MbpsIncreased speed

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