Web Development and Design Foundations with XHTML, 5th Edition

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Chapter 1

Checkpoint 1.1

1. The Internet is a public, globally connected network of computer
   networks. An intranet uses the same protocols as the Internet, but it is a
   private network used to share organizational information and resources
   among coworkers.


2. The commercialization and exponential growth of the Internet that
   occurred in the early 1990s was due largely to three main events: the
   removal of the restriction of commercial use on NSFnet, the development
   of the World Wide Web by Tim Berners-Lee at CERN, and the develop-
   ment of a graphical browser (called Mosaic) at the NCSA. These events
   combined to provide the commercial incentive and an easy way to share
   and access information in a way that had never been experienced.


3. The Internet is a global, interconnected network of computer networks—
   a maze of phone lines, cable lines, and satellites that connect computers
   around the world. Information is stored in many formats on computers
   connected to the Internet. The World Wide Web, or Web, is a graphical
   user interface to some of the information stored on computers connected
   to the Internet—the computers that use HTTP to provide information in
   Web page format. The Web provides access to a portion of the informa-
   tion available on the Internet.

Checkpoint 1.2

1. An example of a Web client is a computer running a browser software
   application such as Internet Explorer. The computer is typically con-
   nected to the Internet only when needed. The Web browser software uses