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Upgrading and Repairing Servers by Barrie Sosinsky, Mark Edward Soper, Scott Mueller

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halftoning

A process that uses dithering to simulate a continuous tone image, such as a photograph or shaded drawing, using various sizes of dots. Newspapers, magazines, and many books use halftoning. The human eye merges the dots to give the impression of gray shades.

handshaking

The process of exchanging information about speeds and protocols between analog modems to establish a dialup connection. If a modem's volume is high enough, you can hear handshaking as a series of distinct tones at the start of a modem-to-modem call.

hard disk

A high-capacity disk storage unit characterized by a normally nonremovable rigid substrate medium. The platters in a hard disk are usually constructed of aluminum or glass/ceramic. Also sometimes called a fixed ...

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