Web developers using the more advanced features of HTML 4 may have to design pages for both browsers and send out the appropriate version to a user. The larger ISPs have their own high-speed leased lines so that they are less dependent on the telecommunication providers and can provide better service to their customers. They also include thousands of local providers. Java can be used to create complete applications that may run on a single computer or be distributed among servers and clients in a network. It can also be used to build small application modules or applets for use as part of a Web page.
Applets make it possible for a Web page user to interact with the page.
In a multimedia environment such as the World Wide Web, such objects can include sound and motion video sequences. The highlighted object is referred to as an anchor. The anchor reference and the object referred to constitute a hypertext link. Links are what make the World Wide Web a web. The other programs are called applications.