U
Unicast
A packet sent to a single end station on a network.
Universal Plug and Play
UPnP. A networking architecture that provides compatibility among networking technology. UPnP compliant routers provide broadband users at home and small businesses with a seamless way to participate in online games, videoconferencing and other peer-to-peer services.
UPM
User Programmable Machine.
UPMA
The first of two UPMs in Motorola's MPC855T processor.
UPMB
The second of two UPMs in Motorola's MPC855T processor.
USP
An abbreviation that represents Unit, Slot, Port.
UTP
Unshielded twisted pair is the cable used by 10BASE-T and 100BASE-Tx Ethernet networks.
