1CSE3213_02_PacketSwitchingW2012

1CSE3213_02_PacketSwitchingW2012 - characters per second)....

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1 Computer Networks: LANs, WANs The Internet CSE 3213, Winter 2012 Instructor: Dusan Stevanovic Required reading: Garcia 1.1 and 1.2
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2 History of Computers http://ftp.arl.army.mil/ftp/historic-computers/gif/eniac4.gif Eniac – the first modern electronic computer. (1950s) Computer a machine that manipulates data according to a set of instructions http://upload.wikimedia.org/wikipedia/commons/thumb/4 4e/Eniac.jpg/785px-Eniac.jpg
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3 “A teletype was a motorized typewriter that could transmit your keystrokes to the mainframe and then print the computer's response on its roll of paper. You typed a single line of text, hit the carriage return button, and waited for the teletype to begin noisily printing the computer's response (at a whopping 10
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Unformatted text preview: characters per second). On the left-hand side of the teletype in the prior picture you can observe a paper tape reader and writer (i.e., puncher). www.computersciencelab.com/ComputerHistory/HistoryPt4.htm Four dual triodes are used to count and store the 4 bits needed to represent a decimal digit. atlas.cs.virginia.edu/brochure/museum.html 4 http://www.answers.com/topic/mainframe?cat=biz-fin input / output unit input / output unit CPU memory 5 History of Computer Networks 1950s - 1960s : Terminal-Oriented Computer Networks 1960s 1970s : Computer-to-Computer Networks: the ARPANET first Wide Area Network (WAN) 1980s : Local Area Networks (LANs) 1980s : The Internet most superior telecommunication network...
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1CSE3213_02_PacketSwitchingW2012 - characters per second)....

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