Chapter 18

World Wide Web

Hyperlink

Elements of the Web

• Clients and Servers
• Web's Languages and Protocols
• URLs and Transfer Protocols (HTTP)
• HTML
• Java and JavaScript
• VBScript and ActiveX Controls
• XML and Other Advanced Web Languages
• Image Formats
• Audio and Video Formats
• VRML
• Web Pages and Web Sites

Special Kinds of Web Sites and Pages

• Portals
• Web Guides - Yahoo!
• Search Engines
• Home Pages (personal, business/organization)

Web Browsers

• Browser Home Pages and Start Pages
• Plug-Ins
• Elements of a Browser Window:
  • Menu bar
  • Toolbars
  • Address or Location window
  • Viewing Window
  • Status bar

Security and Privacy Issues

• Cookies
• Firewalls
• Secure Communications and Transactions
• How Secure Transactions Work
  • Public Key Cryptography
  • Digital Certificates
  • Secure Sockets Layer (SSL)
• Executing a Secure Transaction (pages 405-406)
• Executable Applets and Scripts
• Viruses
• Privacy Implications of Browser Caches and History
• Anonymous Web Browsing Through Proxies

Purchasing Products Online with Wallet Programs