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PHYSICAL VS. LOGICAL MARKUP

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  • PHYSICAL MARKUP SYSTEMS (TROFF IS AN EXAMPLE) ARE BASED ON MARKUP COMMANDS THAT SPECIFY THE APPEARANCE OF A DOCUMENT.
    • FONT SIZES IN POINTS
    • MARGINS/INDENTATION IN INCHES

  • SUCH SYSTEMS DON'T SOLVE THE PROBLEMS PRESENTED BY THE WEB

  • LOGICAL MARKUP IS AN ALTERNATIVE APPROACH (EXEMPLIFIED BY THE LATEX PACKAGE) IN WHICH:
    • MARKUP COMMANDS SPECIFY LOGICAL STRUCTURE OF DOCUMENT (i.e. THIS IS A NEW CHAPTER)
    • SYSTEM MAPS STRUCTURE DESCRIBED TO APPROPRIATE (?) PHYSICAL LAYOUT



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Williams College
Department of Computer Science
This page is part of a section of lecture slides related to " HTML Background " within the topic "An Introduction to HTML". Other slides within this section and other sections of slides for the topic "An Introduction to HTML" can be accessed using the links below.
  • Useful Networking Background
  • The Client Server Relationship
  • Server Software and Protocols
  • HTTP and HTML
  • HTML Background
  • A Sample of HTML
  • What is WYSIWYG?
  • SAMPLE MS WORD SCREEN DISPLAY
  • SAMPLE OF TROFF MARKUP COMMANDS
  • The Motivation for Markup Languages
  • PHYSICAL VS. LOGICAL MARKUP
  • IS LOGICAL MARKUP LOGICAL FOR THE WEB?
  • HTML Standards
  • HTML Standardization Efforts
  • WHAT VERSION OF HTML TO USE?
  • Basic Syntactic Conventions
  • BASICS OF HTML SYNTAX
  • BASICS OF HTML SYNTAX (cont.)
  • BASICS OF HTML SYNTAX (cont.)
  • BASICS OF HTML SYNTAX (cont.)
  • BASICS OF HTML SYNTAX (cont.)
  • Overview of Document Structure
  • HTML DOCUMENT STRUCTURE
  • SPECIFYING THE DOCUMENT TITLE
  • THE STRUCTURE OF A DOCUMENT <BODY>
  • BLOCK LEVEL ELEMENTS AS CONTAINERS
  • THE ALIGN ATTRIBUTE
  • HEADERS AND PARAGRAPHS
  • HEADERS AND PARAGRAPHS (cont.)
  • HEADERS AND PARAGRAPHS (cont.)
  • HEADERS AND PARAGRAPHS (cont.)
  • PREFORMATTED TEXT
  • (Not-PRE) FORMATTED TEXT
  • CONTAINER CONTAINERS
  • MAKING LINKS
  • URL'S
  • URL Protocol Specifications
  • URL Host Specifications
  • URL File Names
  • URL Directory Path Specification
  • RELATIVE URLS
  • ANCHORS
  • URLS WITH ANCHORS
  • DEFINING AN ANCHOR LOCATION