U
U
U-SCSI/W-SCSI - UltraSCSI, WideSCSI
UAA - Universally Administred Address
UAA - Universal Audio Architecture
UAC - User Account Control
UART - Universal Asynchronous Receiver/Transmitter
UDF - Universal Disk Format
UDG-PI - Unix Developer Guide - Programming Interface
UDO - Ultra Density Optical
UDP/IP - User Datagram Protocol/Internet Protocol
UEP - Unequal Error Protection
UFS - Unix File System
Ugello
ULSI - Ultra Large Scale Integration
Ultimo miglio
Ultra ATA/33
Ultra ATA/66
Ultra DMA/33
Ultra DMA/66
Ultra MicroDot
Ultra Sparc IV
Ultra Wide SCSI
Ultra/150 CQ - Ultra/150 Command Queuing
Ultra160 SCSI
Ultra2 SCSI
Ultra3 SCSI
Ultra320 SCSI
Ultra4 SCSI
Ultra5 SCSI
Ultrapassword
Ultraportatile
Ultrashadow
ULV - Ultra Low Voltage
UMA - Upper Memory Area
UMA - Unlicensed Mobile Access
UMB - Upper Memory Block
UMPC - Ultra Mobile Personal Computer
UMTS - Universal Mobile Telecommunications System
Unbunding
Underflow
Undo
Unicast
Unità di memoria di massa
Unix - Uniplexed Information and Computing System
Unix 95
UnixWare
Untrusted
UOK? - Are You OK?
Upgrade
Upload
UPnP - Universal Plug aNd Play
UPS - Uninterruptible Power Supply
Upstream
URL - Uniform Resource Locator
USB - Universal Serial Bus
USB 1
USB 2
USB Hub
USB OTG - USB On The Go
USENET
User agent
User-friendly
User-id
Username
Usr
UTDP - Ultra Threaded Dispatch Processor
Utility
UTP - Unshielded Twisted Pair
UUCP - Unix-to-Unix Copy
UUencode / UUdecode
UV - Ultra-Violet
UWB - Ultra Wide Band