Chapter 1. HTML INTRODUCTION
HTML INTRODUCTION In this chapter you will be introduced to the concepts of linear media and hypermedia. You will learn about HTML and the basics of document structure. |
OBJECTIVES Upon completing this section, you should be able to:
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Linear MediaLinear media is a term used to describe any media where there is a defined beginning and a linear progression to the end. Forms of linear media such as movies, audio and videotapes, and most books are organized with this expectation. The World Wide Web, however, is organized very differently. HypermediaHypermedia is where the user simply selects the next item of interest and is immediately transported to that new location. A good example is an audio CD where you can choose song 5 and listen to it almost immediately. Contrast this with an audiotape where you would have to scan through from your current location on the tape to the beginning of the song. When this concept is applied to text you get hypertext, where by {Clicking} on a link or hotspot (hyperlink) you are immediately transported to a new location within the same page or to a new page altogether. When you interlink a large number of pages of text on different computers all over the world, you get a spider web-like system of links and pages. This is known as the World Wide Web – a system whereby pages stored on many different web servers, connected to the Internet, are linked together. The system is useful because all of the pages are created in the same format. This format or "language" is called HTML, (Hypertext Markup Language) a subset of an international standard for electronic document exchanged called SGML (Standard Generalized Markup Language). In this class you will be introduced to the format of an HTML page, you will learn about the components that make up HTML, and how to create pages that can be published on the World Wide Web. |
A Basic Document
An element called HTML surrounds the whole document. This element contains two sub-elements, HEAD andBODY. These elements are required to form any HTML document.
<HTML>
<HEAD> has sub-elements that define header material:
<TITLE> document title. The title of your document is what appears in a web browser’s Favorite or Bookmark list. Your document’s title should be as descriptive as possible. Search engines on the Internet use the document’s title for indexing purposes. </TITLE>
<BASE> can be used to record the document's location in the form of a URL. The URL recorded here may be used to resolve a relative URL (necessary if the document is not accessed in its original location). </BASE>
<ISINDEX> indicates to the browser that the document is an index document. This is used only if the document is on a server that does indexing. </ISINDEX>
<LINK> indicates a relationship between this document and some other object on the Web. </LINK>
<META> provides information such as the page’s keywords and description that appears in HTTP headers.</META>
<SCRIPT> contains either JAVA Script or VB Script</SCRIPT>
<STYLE> contains information used by cascading style sheets </STYLE>
</HEAD>
<BODY> the remaining HTML elements are contained within these tags.</BODY>
</HTML>
Note: a framed document is formatted differently than a basic document and is discussed in the advanced section of this course.
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