ABSTRACT
The terms “Internet” and “Web” are often used interchangeably but the fact is that these two terms are not synonymous. They are two discrete but correlated concepts. The Internet is a huge network of networks that connects millions of computers together worldwide, referring to the actual physical connectivity between computers. It is a global data communications system. On the other hand, the World Wide Web, or simply the Web, is one of the popular services offered on the Internet. It is one of the ways in which information is disseminated and accessed over the medium of the Internet. That is, apart from surfing the Web, the Internet is also used to send e-mail messages, send (upload) and receive (download) files, participate in discussion groups (such as mailing lists and newsgroups), and more. Thus, the Web is just a fragment of the Internet, albeit a massive one. This chapter of the book proffers a prerequisite primer on the What, How, Who, and Why of the Internet. It expounds the details pertaining to the architecture and applications of the Internet.
