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UDMA (Ultra Direct Memory Access)
UHCI (Universal Host Controller Interface)
Ultra Direct Memory Access (UDMA)
unidirectional 4-bit parallel port
uninterruptable power supply [See UPS]
Universal Disc Format [See UDF]
Universal Host Controller Interface (UHCI)
Universal Serial Bus [See USB]2nd [See USB]
features
Pentium Pro/Pentium class systems
checking/rechecking before power-up
leaving cover off until you're sure
replacing cover when upgrade is complete
using force cautiously but when necessary
Upper Memory Area [See UMA]
UPS (uninterruptable power supply) [See also BPS]2nd
USB (Universal Serial Bus) 2nd
identifying USB HCI under Windows 2000/XP
identifying USB HCI under Windows 9X
verifying USB interrupt sharing under Windows 2000/XP
verifying USB interrupt sharing under Windows 9X
viewing USB HCI Properties under Windows 2000/XP
viewing USB HCI Properties under Windows 9X
viewing USB Root Hub Properties under Windows 2000/XP
viewing USB Root Hub Properties under Windows 9X
ports
early implementations, disadvantages of
USB Host Controller Interfaces