The Internet has become one of the most important components of our
life. We browse the Web, check e-mails, make VoIP phone calls, and have
video conferences via computers. All of these applications are made
possible by networking computers together, and this complex network of
computers is usually referred to as the Internet. This course is
designed to give you a clear understanding of how networks, from in-home
local area networks, or LANS, to the massive and global Internet, are
built and how they allow us to use computers to share information and
communicate with one another.