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Web Programming
Lecture # 01
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Internet
• Network of networks that consists of millions of private & public, academic, business and Government networks.
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Web• Is a distributed information system • Information in the web is connected by Hyperlinks.
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World Wide Web
• Is a system of interlinked hypertext documents documents via the internet.
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Hypertext• Is a text, displayed on a computer with references to other text that
the reader can immediately access, usually by a mouse click or key press sequence. OR
• Or a method of presenting information where selected word in online text can be expanded into more information
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Web Page• Is a document on the internet• Web Site is a collection of web pages.
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Web Browser• Is a computer program tou use to retrieve
and view web pages. E.g. IE, NetScape
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Web Server• A computer program that is responsible for accepting HTTP
requests from clients • The computer on which such software runs is known as web server
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Protocol• is a set of rules which is used by computers to communicate with
each other across a network. A protocol is a convention or standard that controls or enables the connection, communication, and data transfer between computing endpoints.
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HTTP• hypertext transfer protocol: a protocol
(utilizing TCP) to transfer hypertext requests and information between servers and browsers
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TCP/IP• TCP (Transmission Control Protocol) operates at a higher level,
concerned only with the two end systems, for example a Web browser and a Web server.
• Whereas IP(Internet Protocol) handles lower-level transmissions from computer to computer as a message makes its way across the Interne