subnet (subnetwork)

A network, either physical or logical, that operates as part of a larger network. In

a local area network (LAN), for example, there may be many virtual LANs (VLANs), each of which may comprise many users on separate physical segments.The users are grouped in VLAN domains by physical port number, Transmission Control Protocol (TCP) port address, medium access control (MAC) address, or Internet Protocol (IP) address. Each VLAN operates as a subnet. See also LAN and VLAN.

• Uniform Resource Locator (URL)
• U-NII (Unlicensed National Information Infrastructure)
• uninterruptible power supply (UPS)
• unipolar
• United Nations/Electronic Data Interchange For Administration, Commerce, and Transport
• United Nations (UN)
• United States Computer Emergency Readiness Team (US-CERT)
• United States Digital Cellular (USDC)
• United States Independent Telephone Association (USITA)
• United States Telecom Association (USTA)
• United States Time Division Multiple Access (US TDMA)
• UNI (User Network Interface)
• universal ADSL (universal Asymmetric Digital Subscriber Line Lite)
• Universal Character Set (UCS)
• Universal Code (Unicode)
• Universal Coordinated Time (UTC)
• Universal International Freephone Number (UIFN)
• Universal Mobile Telecommunications System (UMTS)
• Universal Plug and Play (UPnP)
• universal serial bus (USB)
• universal service
• Universal Service Administrative Company (USAC)
• Universal Service Fund (USF)
• University Corporation for Advanced Internet Development (UCAID)
• UNIX