Learning to Use the Internet & the World Wide Web Chapter 2 By Ernest Ackermann & Karen Hartman Mary Washington College
Chapter TwoInternet and Browser Basics Goals/Objectives • Gain a general understanding of the technical aspects of the Internet • Learn the primary terms and concepts associated with using the Internet and the Web • Learn some of the functions and capabilities of a Web browser • Learn the ways to navigate around the Web
An Overview of How the Internet Works • Protocols • Rules that govern how computer systems communicate with each other • Two basic protocols: Internet Protocol (IP) and Transmission Control Protocol (TCP)
Protocols • Protocols are rules that govern the exchange of information between computer networks. Two basic protocols are: • IP: Internet Protocol • TCP: Transmission Control Protocol • These two protocols are often referred as TCP/IP
IP Addresses and Domain Names • Each network on the Internet has a unique address, called an IP address. • A descriptive name, called an Internet domain name, is sometimes used. www.webliminal.com is a domain name.
Domain Types • Domain Name Ending Examples • .edu – educational (www.mwc.edu) • .gov – U.S. government agency (www.census.gov) • .com – commercial (www.microsoft.com) • .net – network (www.earthlink.net) • .org – non-profit organization or institution (www.sierraclub.org)
Packets • Packets of characters, similar to envelopes holding messages, are used to carry information on the Internet. • The Internet is a packet-switched network. • Each computer system connected to the Internet must have the proper hardware and software in order to work with packets.
Basic Terms and Concepts • Digital Format • Client/Server • Hypertext Transfer Protocol (HTTP) • Hypertext Markup Language (HTML) • Uniform Resource Locator • Error Messages • 404 error
Using the Browser’s Window • Major browsers: Microsoft Internet Explorer and Netscape Navigator • Web page title • Menu Bar • Toolbars • Content Area or Document View • Scroll Bar • Status Bar
Working with the browser • Starting the browser • Ending a browser session • Getting help • Changing text size • Keyboard shortcuts
Using the Right Mouse Button • Back or forward • Copy and paste • Content area • Images • Hyperlinks
Navigating the Web • Starting at home • Moving through a page • Moving from page to page • Moving back and forward • The history list
Bookmarks or Favorites • The bookmark or favorites list is a collection of hyperlinks to Web pages that you want to save from session to session. • Bookmarks – Netscape • Favorites – Internet Explorer