lecture21_inf201_fall2010

lecture21_inf201_fall2010 - INF201 Introduction to Computer...

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Introduction to Computer Networks INF201 Introduction to Information Technologies INF201 Department of Informatics University at Albany – SUNY Adapted from Choi, Spring 2009
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Introduction Who today has not used a computer network? Mass transit, interstate highways, 24-hour bankers, grocery stores, cable television, pagers, mobile telephones, most businesses and schools, and other retail outlets can support some form of computer networks. A commercial by Sun Microsystems INF201
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The Language of Computer Networks Computer network - an interconnection of computers and computing equipment using either wires or radio waves over small or large geographic distances Local area network (LAN) - networks that are small in geographic size spanning a room, building, or campus Metropolitan area network (MAN) - networks that serve an area of 3 to 30 miles - approximately the area of a typical city INF201
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The Language of Computer Networks Wide area network (WAN) - a large network that encompasses parts of states, multiple states, countries, and the world Data communications - the transfer of digital or analogue data using digital or analogue signals Voice network - a network that transmits telephone signals Data network - a network that transmits computer data INF201
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The Language of Computer Networks Telecommunications - the study of telephones and the systems that transmit telephone signals Network management - the design, installation,
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lecture21_inf201_fall2010 - INF201 Introduction to Computer...

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