When one computer wants to talk to another that is not on the same switch, it must find a path to that computer called a frame.

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Technological changes such as the rise of collaboration tools make it easier to multi-task: you can have a chat window, a word-processing document, a Web browser, and other applications all open at the same time on your computer, and switch easily between them.

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For example, users can switch from a favorite HD movie on a Blu-ray player to the computer, viewable on the HDTV, to quickly send an email and then return to the film.

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Doubling your screen real estate is a great way of getting the most out of the information that your computer's giving you without having to switch back and forth between pages on a smaller, single-screen setup.

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