IT 132 Web Page Development

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IT 132Web Page Development

• Introduction

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Syllabus

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

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Textbooks
Web Design ? WD HTML ? HTML FrontPage 2003 ? FP
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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

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• What are the reasons to network?

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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.
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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)

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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
packets address, and if the current node is not
its destination, forwards it on toward its
destination.
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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

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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)
• W3Cs mission is to lead the Web to its fullest
  potential.
• Set standards by consensus

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Internet Users Worldwide
Source Computer Industry Almanac
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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)

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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)

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Large Businesses and Organizations
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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

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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

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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.

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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