UIT - Implementation Under Test

UL - Unordered List

UL - Upload

UL - Underwriters Laboratories

ULA - Uncommitted Logic Array

ULCC - University of London Computing Center

ULN - Universal Link Negotiation

ULSI - Ultra Large Scale Integration

UMA - Uniform Memory Access

UMA - Upper Memory Area

UMA - Unified Memory Architecture

UMB - Upper Memory Block

UME - Unit Management Entity

UML - Uniform Modeling Language

UNC - Uniform Naming Convention

UNC - Uncoded Netnews Collator

UNCOL - Universal Computed Oriented Language

UNI - User Network Interface

UNICOM - Universal Integrated Communication

UNII - Unlicensed National Information Infrastructure

UNIVAC - Universal Automatic Computer

UNMA - Unified Network Management Architecture

UPC - Universal Product Code

UPC - Usage Parameter Control

UPC - Universal Products Code