Index_U

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U

UART (Universal Asynchronous Receiver/Transceiver), 66, 117, 513

Ultra-DMA, 110

UltraDMA EIDE connectors, 40 (fig.)

Ultra-wide SCSI interface, 176

UMA (Upper Memory Area), 94–95, 513

UMB (Upper Memory Blocks), 95, 513

UNATTEND.TXT, 377

UNC (Universal Naming Convention), 229

Upgrades, OS. See specific operating systems

UPS (Uninterruptible Power Supply), 43–44, 513

URL (Uniform Resource Locator), 238, 513

USB (Universal Serial Bus)

architecture, 52

connections, 198–200

defined, 513

keyboard and mouse connectors, 196–197

motherboard connectors, 40 (fig.), 192 (fig.)

mouse, 115

USB 2.0, 199–200

USB patch, Windows 95, 200

User administration

account creation and management, Windows NT, 350–351

Active Directory, Windows 2000, 391

profiles and system policies, Windows NT, 353

profiles, Windows ME, 426–429

profiles, Windows XP, 470–471

USER.DAT, 312

UTP (Unshielded Twisted Pair), 204–205, 207, 513

UVGA (Ultra VGA), 138

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