Overview

The Internet

• The Internet is the global network of interconnected computer networks.

• The Internet protocol suite is a set of communications protocols that the internet uses to link devices worldwide.

• The Internet is the infrastructure for many information resources and services, for example, email and file sharing.

The World Wide Web (WWW)

• The World Wide Web (the Web) is one way to access information over the internet.

• The Web uses Uniform Resource Locators (URLs) to identify resources.

• The Hypertext Transfer Protocol (HTTP) is the communication protocol for the Web.

• The Web uses a client-server model to access resources; the client sends a request and the server replies with a response.

The Basic Request/Response Procedure

Internet Standards

• An Internet Standard is a specification of a technology or methodology applicable to the internet.

• Internet standards are created by the Internet Engineering Task Force (IETF)

• An Internet Standard is a Request for Comments (RFC) or set of RFCs

• Process:

  1. Internet Draft

  2. Proposed Standard

  3. Internet Standard

Web Standards

• Web standards are technical specifications that define and describe aspects of the Web

• Web standards consider the interoperability, accessibility, and usability of web pages and web sites

• Web standards include:

  • RFCs published by the IETF

    • Properly formed Uniform Resource Identifiers (URIs)

    • Proper use of the HTTP

  • Recommendations published by the World Wide Web Consortium (W3C)

    • Markup languages (HTML)

    • Stylesheets (CSS)

    • Document Object Models (DOM)