New PDF release: Data Communications and Networking (4th Edition)

By Behrouz Forouzan

ISBN-10: 0072967757

ISBN-13: 9780072967753

As one of many quickest becoming applied sciences in our tradition this present day, facts communications and networking provides a distinct problem for teachers. As either the quantity and kinds of scholars are expanding, it truly is necessary to have a textbook that offers assurance of the most recent advances, whereas proposing the cloth in a fashion that's obtainable to scholars with very little history within the box. utilizing a bottom-up process, facts Communications and Networking provides this hugely technical material with out counting on advanced formulation through the use of a powerful pedagogical procedure supported through greater than seven-hundred figures.

Now in its Fourth version, this textbook brings the start scholar correct to the vanguard of the newest advances within the box, whereas featuring the basics in a transparent, elementary demeanour. scholars will locate greater insurance, better figures and higher factors on state-of-the-art fabric. The "bottom-up" technique permits teachers to hide the cloth in a single path, instead of having separate classes on facts communications and networking.

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Extra info for Data Communications and Networking (4th Edition)

Sample text

Software The programs that tell the computer what to do. BIOS The most basic software is the Basic Input Output System (BIOS). This software is stored on a read-only chip on the motherboard so that it doesn’t accidentally get changed or corrupted. This important software helps the computer start up and performs some basic testing on the hardware. BIOS The software that initializes and tests the system at startup. Operating Systems The operating system (OS) manages all the computer’s activities after startup.

Motherboards with these older ports are still available today, but they are becoming less and less common. The most common legacy ports are: PS/2 A connector used to connect some older keyboards and mice to a computer. PS stands for Personal System. This connector was first introduced with the IBM PS/2 computer in 1987. P  S/2 port: This is a small round port that was used for mice and keyboards before USB became popular. They are usually color-coded: purple for the keyboard and green for the mouse.

6 shows a PCI Express Mini Card and its connector. Part I: Computer Basics and Hardware Photo by Snickerdo; licensed under Creative Commons. 5 PCI and PCIe slots in a motherboard. Photo by Bastiaan van den Berg; licensed under Creative Commons. 6 A PCI Express Mini Card. Built-in Components Motherboards can also have built-in components for video, audio, and networking. Having these components built in means that you don’t need to buy separate circuit boards for those capabilities, and you don’t need expansion slots for such cards.

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Data Communications and Networking (4th Edition) by Behrouz Forouzan

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