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Network? Computer What Is Communication?

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Network? Computer What Is Communication? Network? computer What is Communication? Connection more than 1 party Exchange info What is Communication? What wiki says? Communication (from Latin commūnicāre, meaning "to share") is the activity of conveying information through the exchange of thoughts, messages, or information, as by speech, visuals, signals, writing, or behavior. It is the meaningful exchange of information between two or a group of living creatures. Pragmatics defines communication as any sign-mediated interaction that follows combinatorial, context-specific and content- coherent rules. Communicative competence designates the capability to install intersubjective interactions, which means that communication is an inherent social interaction. What is Comp. Net Telecommunication network Data exchange Between more than 1 device/user What is Comp. Net What wiki says? A computer network or data network is a telecommunications network that allows to exchange data. In computer networks, networked computing devices (network nodes) pass data to each other along data connections. The connections (network links) between nodes are established using either cable media or wireless media. The best-known computer network is the Internet. Bottom line Bottom line History How it all began.. History 1960 - AT&T designed its Dataphone, the first commercial modem. Outside manufacturers incorporated Bell Laboratories´ digital data sets into commercial products. 1964 - Online transaction processing made its debut in IBM´s SABRE reservation system, set up for American Airlines. Using telephone lines, linked 2,000 terminals in 65 cities to a pair of IBM 7090 computers, delivering data on any flight in less than three seconds. History 1966 - John van Geen of the Stanford Research Institute vastly improved the acoustically coupled modem. His receiver reliably detected bits of data despite background noise heard over long-distance phone lines. 1970 - Citizens and Southern National Bank in Valdosta, Ga., installed the country´s first automatic teller machine. 1970 - Department of Defense established four nodes on the ARPANET: the University of California Santa Barbara and UCLA, SRI International, and the University of Utah History 1971 - The first e-mail is sent. Ray Tomlinson of the research firm Bolt, Beranek and Newman sent the first e-mail when he was supposed to be working on a different project 1973 - Robert Metcalfe devised the Ethernet method of network connection at the Xerox Palo Alto Research Center. History 1975 - Telenet, the first commercial packet-switching network and civilian equivalent of ARPANET, was born. The brainchild of Larry Roberts, Telenet linked customers in seven cities. Telenet represented the first value-added network, or VAN — so named because of the extras it offered beyond the basic service of linking computers. 1976 - The Queen of England sends first her e-mail. Elizabeth II. History 1979 - USENET established. USENET was invented as a means for providing mail and file transfers using a communications standard known as UUCP. It was developed by graduate students Tom Truscott, Jim Ellis, and Steve Bellovin. It would go on to become one of the main areas for large-scale interaction for interest groups through the 1990s. 1983 - The ARPANET splits into the ARPANET and MILNET. History 1985 - The modern Internet gained support when the National Science foundation formed the NSFNET 1988 -Robert Morris´ 23 worm flooded the ARPANET. History 1990 - The World Wide Web was born when Tim Berners-Lee, a researcher at CERN, the high-energy physics laboratory in Geneva, developed HyperText Markup Language. HTML 1993 - Mosaic was the first commercial web browser that allowed graphical access to content on the internet. Designed by Eric Bina and Marc Andreessen at the University of Illinois’s National Center for Supercomputer Applications, Mosaic was originally designed for a Unix system running X-windows How it works? Network with many different machine brands Different designer, engineer Chicken and Duck comm. How it works? OSI vs TCPIP model There are two network models that describe how networks 'work'. The OSI Model, the older model, was designed for the OSI protocol stack. While different organizations were battling over standards, Vint Cerf and Bob Khan worked out the TCP/IP software from which the TCP/IP Model was co-designed. Reference http://en.wikipedia.org/wiki/Communication http://en.wikipedia.org/wiki/Computer_network http://en.wikipedia.org/wiki/OSI_model http://www.computerhistory.org/timeline/?category=net http://www.sis.pitt.edu/~icucart/networking_basics/7layersofOSI.ht m http://en.wikipedia.org/wiki/Internet_protocol_suite http://en.wikipedia.org/wiki/Internet_protocol_suite http://en.wikipedia.org/wiki/Network_switch http://en.wikipedia.org/wiki/Address_Resolution_Protocol http://www.inetdaemon.com/tutorials/basic_concepts/network_m odels/comparison.shtml http://www.inetdaemon.com/tutorials/basic_concepts/network_m odels/osi_model/real_world_example.shtml .
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