Date Submitted: Dec 6, 2009 - 10:53:17 AM
Summary: Accompanying the current Internet revolution, the wireless revolution is also having a profound impact on the way people work and live. Today, more people in Europe have a mobile phone than a PC or a car.

Date Submitted: Dec 6, 2009 - 10:51:59 AM
Summary: If you have a PC with Windows XP installed, and it works well enough for what you want to do, leave it alone. Keep your Windows XP machine updated with the latest security patches, as soon as they're tested and found to be reliable. But don't throw it in the trash heap yet.

Date Submitted: Dec 6, 2009 - 10:51:11 AM
Summary: Windows Vista is a type of software known as an operating system (abbreviated OS). One thing that's unique about an operating system is that it's the only software that a computer is required to have. If you try to start a computer that has no operating system installed on it, you get nothing. If the computer has only an operating system and nothing else, that's fine. But it has to have an operating system to do anything at all, even start.

Date Submitted: Dec 6, 2009 - 10:50:10 AM
Summary: The ideal world of affiliate marketing does not require having your won website, dealing with customers, refunds, product development and maintenance. This is one of the easiest ways of launching into an online business and earning more profits.

Date Submitted: Dec 6, 2009 - 10:49:10 AM
Summary: There are many webmasters that find writing articles for their site to be a very tedious task. Many people who need to write articles also procrastinate as much as they can to delay the amount of writing they need to do. Many people dread writing articles because they find researching for the topic and writing down original materials will be too taxing on them.

Date Submitted: Dec 6, 2009 - 10:47:10 AM
Summary: The Internet has become mission critical for many institutions today, including large and small companies, universities, and government agencies. Many individuals also rely on the Internet for many of their professional, social, and personal activities.

Date Submitted: Dec 6, 2009 - 10:46:17 AM
Summary: Before diving into software coding, you should have a broad architectural plan for your application. Keep in mind that an application's architecture is distinctly different from the network architecture. From the application developer's perspective, the network architecture is fixed and provides a specific set of services to applications.

Date Submitted: Dec 6, 2009 - 10:44:54 AM
Summary: The physical path that data takes down a sending end system's protocol stack, up and down the protocol stacks of an intervening link-layer switch and router, and then up the protocol stack at the receiving end system. As we discuss later in this book, routers and link-layer switches are both packet switches.

Date Submitted: Dec 6, 2009 - 10:41:34 AM
Summary: We saw earlier that end systems (user PCs, PDA's, Web servers, mail servers, and so on) connect into the Internet via an access network. Recall that the access network may be a wired or wireless local area network (for example, in a company, school, or library), a residential cable modem or DSL network, or a residential ISP (for example. AOL or MSN) that is reached via dial-up modem.

Date Submitted: Dec 6, 2009 - 10:36:54 AM
Summary: Earlier we said that a muter takes a packet arriving on one of its attached communication links and forwards that packet on to another of its attached communication links. But how does the router determine the link onto which it should forward the packet?