Web Programming Step by Step

Chapter 1
The Internet and World Wide Web

Except where otherwise noted, the contents of this presentation are Copyright 2009 Marty Stepp and Jessica Miller.

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1.1: The Internet

What is the Internet?

The Internet

The Internet
  • the Web is the collection of web sites and pages around the world; the Internet is larger and also includes other services such as email, chat, online games, etc.

Brief history (1.1.1)

Key aspects of the internet

People and organizations (1.1.2)


Layered architecture (1.1.3)

The internet uses a layered hardware/software architecture (also called the "OSI model"): OSI model

Internet Protocol (IP)

Transmission Control Protocol (TCP)

1.2: The World Wide Web (WWW)

Web servers and browsers (1.2.1)

web server

Domain Name System (DNS) (1.2.2)

Uniform Resource Locator (URL)

More advanced URLs

Hypertext Transport Protocol (HTTP) (1.2.3)

HTTP error codes

Internet media ("MIME") types

Web languages / technologies (1.2.4)