IST 221 Internet Concepts and Applications Internet, WWW and HTML 1

Internet? World wide Web? Internet –A collection of individual computer networks –Purpose: communication and sharing computer resources WWW –A collection of documents -- web pages, software and protocols that has been installed on the Internet. –Purpose: Sharing information such as text, image, sound recordings.

Internet Low level protocol: TCP/IP High level protocols: FTP, HTTP. mailto, telnet, gopher. IP address –Unique address of a machine connected to the Internet – a 32 bit number: Domain names

WWW HTTP- –a protocol used to request and send HTML URL, uniform resource locator. –The path to a document for the HTTP. –(What’s the difference between URLs and domain names?) Web Programming Tools –Markup language: HTML, XML –Programming language: Client Side: JAVAScript Server Side: Perl and PHP

HTML A markup language to describe the presentation of text and other media. A mixture of content and controls The controls are specified by the HTML tags DHTML: HTML embedded with CSS, Client side scripting.

A blank page created by Dreamweaver

Basic Text Formatting Paragraph Line breaks Headings Block Quotations Font Styles and Sizes –Italic –Boldface – and

Basic Text Formatting Character Entities &, ½, degree –&: & –◦: ° –½: ½ (see p. 41) Horizontal Rules

Exercises 1.1. Figure 2.4 on page Display the following message: Rolla MO Current temperature is 36 ◦ F Save your files as ex1_1.htm, and ex1_2.htm. Create a folder: IST221 under your S drive and save the files under S:\IST221