Except for periodic maintenance, you can have a WWW presence 24 hours a day, seven days a week. Just think, a retail coffee shop in Hawaii can offer its products to anyone in the world that has the capability of viewing their web site. Think of the WWW as a big library on the Internet. To view these web sites and their pages, you need a special type of client software called a browser. A browser allows you to navigate the WWW and manage the information you find.
Browsers range in price from free to nearly fifty dollars.
You can compare a browser to a word processing application. But instead of having product features that make it easy to perform a task like making text bold, browsers take advantage of what are called extensions. Some of the common extensions for a browser are to have custom backgrounds or to scroll text in a marquee fashion. However, like word processors, every three to six months new versions of browsers are released that take advantage of new extensions. Like word processors in the past, browsers from competitive companies will leapfrog each other and take advantage of new extension functionality.