Internet and WWW

Internet and WWW - Chapter2 InternetandWorldWide Web...

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Chapter 2 Internet and World Wide  Web
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  Know different types of protocols   Know which protocols define and enable the Internet   What types of information is available on Web  How to evaluate the Web pages Objective 2
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  Worldwide collection of  packet-switching  network of computers  connected by high-speed communication links  Popular services  World Wide Web  E-mail Internet 3 Packets are an “electronic  envelope” that carry messages to  a destination.     Client-server  network
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Protocol Rules that help in governing an operation on the Internet and  communications over it TCP/IP SMTP POP  IMAP HTTP HTTPS DNS
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Protocol: TCP/IP Most fundamental to the working of the Internet.   TCP (Transmission Control Protocol)     Ensures correct delivery of packets from client to     server  IP (Internet Protocol)   How packets are routed
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Packets to Destination Packets follow the best  available route Packets follow  different routes
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server client A client (a personal computer) connects with a server (shared computer) permitting messages to be shared . Your mail is stored on the server’s disk allowing you  to connect from any computer. e-mail is a typical  client-server  arrangement E-mail Email Protocols: SMTP, POP & IMAP
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Simple Mail Transport Protocol  (SMTP) De facto standard for e-mail transmissions across the Internet
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 Internet Mail Access  Protocol (IMAP) – Mail  remains on server unless 
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This note was uploaded on 02/06/2011 for the course IT 103 taught by Professor Sangjara during the Fall '08 term at George Mason.

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Internet and WWW - Chapter2 InternetandWorldWide Web...

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