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IT 132 Web Page Development

IT 132 Web Page Development. Introduction. Syllabus. Read your syllabus! Check out my website http://www.octc.kctcs.edu/tschmitt/ Textbooks. Textbooks. Web Design  WD HTML  HTML FrontPage 2003  FP. Networks.

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IT 132 Web Page Development

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  1. IT 132Web Page Development Introduction

  2. Syllabus • Read your syllabus! • Check out my website • http://www.octc.kctcs.edu/tschmitt/ • Textbooks

  3. Textbooks • Web Design  WD • HTML  HTML • FrontPage 2003  FP

  4. Networks • Network – a collection of computers and devices connected together via communication devices and media • Communication device – modem\ • Communication media – cables, phone lines, cellular radio, satellites

  5. HARDWARE DEVICES SAVE TIME AND MONEY SHARE RESOURCES SOFTWARE PROGRAMS DATA INFORMATION • What are the reasons to network?

  6. Public World Wide Web Private Intranets Internet A structure made up of millions of interconnected computers whose users can communicate with each other and share information. The rules that determine how information is sent, forwarded and received over the wire.

  7. How Did the Internet “Happen”? • Started in the Cold War era. ARPA gave the challenge of establishing a communication system to command and control the ICBM missile system to the Rand Corporation  ARPAnet • No central authority • Operated in a condition of assumed unreliability • By 1971 there were 15 nodes (Universities and Government Agencies)

  8. How did the Internet Happen? continued Breaks the file down into smaller packets, more efficient. Each packet is individually labeled. At destination TCP will reassemble the packets. • Telnet – 1972 • FTP – 1973 • 1st email – 1977 • 1st Newsgroups – 1979 • TCP/IP – 1982 – Transmission Control Protocol/Internet Protocol, the standard set of rules for sending and receiving data across the network A router, at each node along the way it reads a packet’s address, and if the current node is not its destination, forwards it on toward its destination.

  9. World Wide Web • 1989 – Tim Berners-Lee (working for CERN) proposed the concept of the “WWW” – “a wide area hypermedia information retrieval initiative aiming to give universal access to a large universe of documents”. He also introduced HTML at the same time. • 1990 – the first ISP (the World, world.std.com) made access to the Internet outside of connected universities and other research facilities

  10. WWW continued • 1994 – the World Wide Web Consortium, W3C, for formed in collaboration with the Laboratory of Computer Science at MIT (where Berners-Lee took up a research position) • W3C’s mission is to “lead the Web to its fullest potential”. • Set standards by consensus

  11. Internet Users Worldwide Source: Computer Industry Almanac

  12. Service Providers • ISP – Internet Service Provider – a business that has a permanent Internet connection and provides temporary connections to individual and companies free or for a fee. • Regional – provides a local number to a geographic area (PSCI in Spencer County) • National – provides a local number in most major cities nationwide. (EarthLink)

  13. Service Providers continued • OSP - Online Service Provider – supplies internet service and many other special features (AOL, MSN) • WSP – Wireless Service Provider – provides wireless Internet access (SprintPCS)

  14. Network Access Providers (NAPs) Internet Service Providers (ISPs) Smaller ISPs Smaller Businesses and Organizations Individuals Large Businesses and Organizations

  15. Dedicated Lines

  16. Page 1.3

  17. Browsers • A Web browser, also called a browser, is a program that interprets and displays Web pages and enables you to view and interact with a Web page • Microsoft Internet Explorer and Netscape Navigator • A Uniform Resource Locator (URL) is the address of a document or other file accessible on the Internet • http://www.scsite.com/html3e/index.htm

  18. Web Servers • Web pages are stored on a Web server, or host, which is a computer that stores and sends (serves) requested Web pages and other files • Publishing is copying Web pages and other files to a Web server

  19. Tools for Creating Web Pages • HTML – not a programming language, it is a formatting language. • Scripts, Applets, Servlets & ActiveX Controls – short programs that make a web page dynamic and interactive • JavaScript, VBScript, and Perl – scripting languages, used to make a web page interactive • XML – the next step from HTML • Web Authoring Packages – like FrontPage and Dreamweaver • HTML Editors – helps you create an HTML file by inserting HTML codes for you as you work.

  20. HTML – the language of the web • Hypertext Markup Language • Uses a special set of instructions called tags or markup to define the structure and layout of a Web document and specify how the page is displayed in a browser. • Platform Independent • HTML is a subset of SGML

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