Chapter 9 Internet The Worlds Largest Resource

Chapter 9 Internet The Worlds Largest Resource - 7/28/2009

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7/28/2009 1 Black & White Busines Computing 2010 Chapter 9 Internet: The World’s Largest Resource Computer Information Systems 105 Internet: The World’s Largest Resource Internet History In 1969 at the University of California at Los Angeles (UCLA), ARPANET (Advanced Research Project Agency Network) was born, one of the precursors to today’s Internet. Tim Berners Lee at CERN (Center for European Nuclear Research) invented a Arizona State University W. P. Carey School of Busines Computer Applications & Information Technology standard programming language called HTML (Hypertext Markup Language) and the protocol to move information through the Internet called HTTP (Hypertext Transfer Protocol). Once this was accomplished, the World Wide Web (WWW) was born. It is important to know that the WWW resides on the Internet. Black & White Busines Computing 2010 Chapter 9 Internet: The World’s Largest Resource Computer Information Systems 105 Internet: The World’s Largest Resource World Wide Web Structure The Internet is a network called a “ Client / Server ” model. A computer on a network that stores webpages is called the server or host, and the computer on the network that requests those web pages is called a client . A computer can be both a client and a server at the same time. Arizona State University W. P. Carey School of Busines Computer Applications & Information Technology With millions of computers connected to the Web, it becomes important to come up with an address system or an Internet Protocol address (IP) in order to identify and communicate throughout the network. Websites have address called Uniform Resource Locators or URLs like http://www.yahoo.com . Http refers to the standard protocol, or the rules of exchanging files. WWW refers to the World Wide Web. www.yahoo.com is the domain name of the website and .com is the domain code. Black & White Busines Computing 2010 Chapter 9 Internet: The World’s Largest Resource Computer Information Systems 105 Internet: The World’s Largest Resource Websites A website is a collection of web pages on a server which can be requested by a client and displayed with browser application software which exist on a server somewhere on the World Wide Web. Arizona State University W. P. Carey School of Busines Computer Applications & Information Technology Most web pages are typically programmed with HTML . HTML allows the web pages to display text, images (pictures), videos, and much more. Web pages also include hyperlinks. A hyperlink (sometimes called link ), is a clickable navigation element, (typically text, but can be images) in a webpage to another webpage of the same website, or even a completely new website. Hyperlinks access the address and document name from another computer on the WWW. Web pages have information on virtually anything and everything.
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7/28/2009 2 Black & White Busines Computing 2010 Chapter 9 Internet: The World’s Largest Resource Computer Information Systems 105 Internet: The World’s Largest Resource Websites
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Chapter 9 Internet The Worlds Largest Resource - 7/28/2009

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