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Browse Definitions by Alphabet

UNI - URN

  • Uniform Resource Name - A URN (Uniform Resource Name) is an Internet resource with a name that, unlike a URL, has persistent significance - that is, the owner of the URN can expect that someone else (or a program) will always be able to find the resource.
  • unikernel - A unikernel is a library-based operating system that only includes functionalities required by the specific application that runs on it.
  • uninterruptible power supply - An uninterruptible power supply (UPS) is a device that allows a computer to keep running for at least a short time when the primary power source is lost.
  • uninterruptible power supply (UPS) - An uninterruptible power supply (UPS) is a device that allows a computer to keep running for at least a short time when the primary power source is lost.
  • union symbol - The union symbol () denotes the union of two set s.
  • unipolar signaling - Unipolar signaling, also called unipolar transmission ,is a baseband method of sending binary data over wire or cable.
  • unipolar signaling (unipolar transmission) - Unipolar signaling, also called unipolar transmission ,is a baseband method of sending binary data over wire or cable.
  • unipolar transmission - Unipolar signaling, also called unipolar transmission ,is a baseband method of sending binary data over wire or cable.
  • unique default password - Unique default passwords can provide more security, although that depends on what type of system is used.
  • unique device identifier (UDID) - A unique device identifier (UDID) is a 40-character string assigned to certain Apple devices including the iPhone, iPad, and iPod Touch.
  • Unique Identification Authority of India (UIDAI) - Unique Identification Authority of India (UIDAI) is the issuing authority of Aadhaar cards (aka unique identification numbers or UIDs).
  • unique identifier (UID) - A unique identifier (UID) is a numeric or alphanumeric string that is associated with a single entity within a given system.
  • unique selling point (USP) - A unique selling proposition (USP, also seen as unique selling point) is a factor that differentiates a product from its competitors, such as the lowest cost, the highest quality or the first-ever product of its kind.
  • unique user - In Web marketing, a unique user is, for a specified period of time such as a day or month, an individual that has visited a Web site or received specific content, such as ads, e-mail, or newsletters.
  • Unisys - Unisys is an American multinational information technology company that provides hardware, software, IT services and consulting.
  • unit of pressure - The pascal (pronounced pass-KAL and abbreviated Pa) is the unit of pressure or stress in the International System of Units (SI).
  • unit of stress - The pascal (pronounced pass-KAL and abbreviated Pa) is the unit of pressure or stress in the International System of Units (SI).
  • unit testing - Unit testing is a software development process in which the smallest testable parts of an application, called units, are individually and independently scrutinized for proper operation.
  • United Launch Alliance (ULA) - United Launch Alliance (ULA) is a private aerospace launch provider.
  • United States Census - The United States Census is a national survey conducted every ten years to enumerate the population for taxation and political representation.
  • United States Department of Commerce - The United States Department of Commerce (DOC) is a cabinet-level bureau of the United States federal government tasked with the promotion of U.
  • United States Department of Energy (DOE) - United States Department of Energy (DOE) is a federal cabinet agency that is tasked with overseeing the energy economy, energy policies and energy security of the U.
  • United States Department of Labor - The United States Department of Labor (U.
  • United States Department of Transportation - The United States Department of Transportation (USDOT or DOT) is a cabinet agency of the U.
  • United States Secret Service (USSS) - The United States Secret Service (USSS) is a federal law enforcement agency mandated by Congress to carry out two sets of primary objectives: provide protection for designated sites and events as well as national and visiting leaders, and preserve the integrity of the U.
  • Universal 2nd Factor (U2F) - Universal 2nd Factor (U2F) is a type of physical authentication device that uses encryption and private keys to protect and unlock supported accounts.
  • universal acceptance (UA) - Universal acceptance (UA) is a best practice that ensures all domain names and email addresses work with all applications, devices and systems.
  • universal access server - A network access server (NAS) is a computer server that enables an independent service provider (ISP) to provide connected customers with Internet access.
  • Universal Asynchronous Receiver Transmitter - A UART (Universal Asynchronous Receiver/Transmitter) is the microchip with programming that controls a computer's interface to its attached serial devices.
  • universal authentication - Universal authentication is a network identity-verification method that allows users to move from site to site securely without having to enter identifying information multiple times.
  • universal basic income (UBI) - Universal basic income (UBI) is a model for providing all citizens of a country or other geographic area with a given sum of money, regardless of their income, resources or employment status.
  • Universal Business Language - Universal Business Language (UBL) is a royalty-free set of documents based on the ebXML (Electronic Business XML) Core Components Technical Specification, also known as ISO 15000-5.
  • Universal Business Language (UBL) - Universal Business Language (UBL) is a royalty-free set of documents based on the ebXML (Electronic Business XML) Core Components Technical Specification, also known as ISO 15000-5.
  • Universal Coordinated Time - Coordinated Universal Time (abbreviated as UTC, and therefore often spelled out as Universal Time Coordinated and sometimes as Universal Coordinated Time) is the standard time common to every place in the world.
  • Universal Data Access - Universal Data Access (UDA) is Microsoft's model or framework for a single uniform application program interface to different software makers' databases, both relational and nonrelational.
  • Universal Data Access (UDA) - Universal Data Access (UDA) is Microsoft's model or framework for a single uniform application program interface to different software makers' databases, both relational and nonrelational.
  • Universal Description Discovery and Integration - UDDI (Universal Description, Discovery, and Integration) is an XML-based registry for businesses worldwide to list themselves on the Internet.
  • Universal Description, Discovery, and Integration - UDDI (Universal Description, Discovery, and Integration) is an XML-based registry for businesses worldwide to list themselves on the Internet.
  • Universal Mobile Telecommunications Service - UMTS (Universal Mobile Telecommunications Service) is a third-generation (3G) broadband, packet-based transmission of text, digitized voice, video, and multimedia at data rates up to 2 megabits per second (Mbps).
  • Universal Mobile Telecommunications System - UMTS (Universal Mobile Telecommunications System) is a so-called "third-generation (3G)," broadband, packet -based transmission of text, digitized voice, video, and multimedia at data rates up to and possibly higher than 2 megabits per second (Mbps), offering a consistent set of services to mobile computer and phone users no matter where they are located in the world.
  • Universal Mobile Telecommunications System (UMTS) - UMTS (Universal Mobile Telecommunications System) is a so-called "third-generation (3G)," broadband, packet -based transmission of text, digitized voice, video, and multimedia at data rates up to and possibly higher than 2 megabits per second (Mbps), offering a consistent set of services to mobile computer and phone users no matter where they are located in the world.
  • universal molar gas constant - The gas constant, also known as the universal molar gas constant, is a physical constant that appears in an equation defining the behavior of a gas under theoretically ideal conditions.
  • Universal Naming Convention - In a network, the Universal Naming Convention (UNC) is a way to identify a shared file in a computer without having to specify (or know) the storage device it is on.
  • Universal Naming Convention (UNC) - In a network, the Universal Naming Convention (UNC) is a way to identify a shared file in a computer without having to specify (or know) the storage device it is on.
  • Universal Plug and Play - Universal Plug and Play (UPnP) is a standard that uses Internet and Web protocols to enable devices such as PCs, peripherals, intelligent appliances, and wireless devices to be plugged into a network and automatically know about each other.
  • Universal Plug and Play (UPnP) - Universal Plug and Play (UPnP) is a standard that uses Internet and Web protocols to enable devices such as PCs, peripherals, intelligent appliances, and wireless devices to be plugged into a network and automatically know about each other.
  • Universal Powerline Bus (UPB) - Universal Powerline Bus (UPB) is a communication methodology for home automation device control, allowing devices to communicate with pulse-position modulation through power lines.
  • Universal Resource Identifier - A URI (Uniform Resource Identifier) is a sequence of characters that identifies a logical or physical resource on a network.
  • Universal Resource Locator - A URL (Uniform Resource Locator) is a unique identifier used to locate a resource on the internet.
  • Universal Service Fund (USF) - The Universal Service Fund (USF) is a United States government program that supports telecommunications access and affordability in rural and low-income communities.
  • universal set - A universal set is the collection of all objects in a particular context or theory.
  • Universal Time Coordinated - Coordinated Universal Time (abbreviated as UTC, and therefore often spelled out as Universal Time Coordinated and sometimes as Universal Coordinated Time) is the standard time common to every place in the world.
  • Universal Unique Identifier - A UUID (Universal Unique Identifier) is a 128-bit number used to uniquely identify some object or entity on the Internet.
  • Universal Windows app - A Universal Windows app is a software program that uses the Windows 8 or Windows 10 codebase and runs the same way on PCs, Windows tablets and smartphones.
  • Unix - Unix -- often spelled UNIX, especially as an official trademark -- is a multi-user operating system designed for flexibility and adaptability.
  • UNIX to UNIX Copy Protocol - UUCP (UNIX-to-UNIX Copy Protocol) is a set of UNIX programs for copying (sending) files between different UNIX systems and for sending commands to be executed on another system.
  • UNIX-to-UNIX Copy Protocol - UUCP (UNIX-to-UNIX Copy Protocol) is a set of UNIX programs for copying (sending) files between different UNIX systems and for sending commands to be executed on another system.
  • unknowable risk - An unknowable risk is a potential threat to an organization's processes that is not known and cannot be quantified or controlled.
  • unknown known - An unknown known is information that an individual or organization has in its possession but whose existence, relevance or value has not been realized.
  • unknown unknown - An unknown unknown is unidentified information.
  • Unlicensed Mobile Access - The Generic Access Network (GAN) is an evolving wireless communications system in which mobile phone sets function seamlessly between local area networks (LANs) and wide-area networks (WANs).
  • unlocked cell phone - An unlocked cell phone is a cellular telephone handset that can be used with more than one service provider, making it easy for a user to switch from one cellular network to another.
  • Unmanned Systems Technology (UST) - Unmanned Systems Technology (UST) is the software and hardware systems that drive semi- and fully-autonomous vehicles.
  • unobtainium - Unobtainium is a term used to refer to a material that cannot be accessed.
  • Unshielded Twisted Pair (UTP) - Unshielded twisted pair (UTP) is a ubiquitous type of copper cabling used in telephone wiring and local area networks (LANs).
  • unsolicited bulk email - UBE (unsolicited bulk email) is a formal term for spam.
  • unsolicited commercial email - UCE (unsolicited commercial e-mail) is a legal term used to describe an electronic promotional message sent to a consumer without the consumer's prior request or consent.
  • unstructured data - Unstructured data is information, in many different forms, that doesn't follow conventional data models, making it difficult to store and manage in a mainstream relational database.
  • Unstructured Supplementary Service Data - USSD (Unstructured Supplementary Service Data) is a GSM (Global System for Mobile) communications protocol that is used to send text messages.
  • unstructured text - The unstructured text collected from social media activities plays a key role in predictive analytics for the enterprise because it is a prime source for sentiment analysis to determine the general attitude of consumers toward a brand or idea.
  • unsupervised learning - Unsupervised learning refers to the use of artificial intelligence (AI) algorithms to identify patterns in data sets containing data points that are neither classified nor labeled.
  • unzipping - Unzipping is the act of extracting the files from a zipped single file or similar file archive.
  • up converter - An HD (high-definition) upconverter, also known as a digital television (DTV) upconverter, is a device that converts the digital data on a DVD to a format that can be viewed directly on a high-definition television (HDTV) receiver without intermediate conversion to an analog signal.
  • upcharge - An upcharge is an additional fee that is added to a bill after a contract has already been negotiated.
  • upconverter - An HD (high-definition) upconverter, also known as a digital television (DTV) upconverter, is a device that converts the digital data on a DVD to a format that can be viewed directly on a high-definition television (HDTV) receiver without intermediate conversion to an analog signal.
  • upcycling - Upcycling is the practice of creating a useable product from waste or unwanted items or adapting an existing product in some way to add value.
  • update sequence number (USN) - An update sequence number (USN) is a 64-bit number in Active Directory that increments time as changes occur.
  • upgrade - In computers, an upgrade is a new version of or addition to a hardware or, more often, software product that is already installed or in use.
  • uplift modeling - Uplift modeling is a type of data analytics that uses predictive modeling to identify individuals who can be positively influenced by a specific outreach effort.
  • uplink - These terms should not be confused with downstream and upstream.
  • uploading - Uploading is the transmission of a file from one computer system to another, usually larger computer system.
  • UPN - In the Windows operating system's Active Directory, a User Principal Name (UPN) is the name of a system user in an e-mail address format.
  • UPnP - Universal Plug and Play (UPnP) is a standard that uses Internet and Web protocols to enable devices such as PCs, peripherals, intelligent appliances, and wireless devices to be plugged into a network and automatically know about each other.
  • UpperCamelCase - UpperCamelCase (part of CamelCase) is a naming convention in which a name is formed of multiple words that are joined together as a single word with the first letter of each of the multiple words capitalized within the new word that forms the name.
  • upright slash - The vertical line, also called the vertical slash or upright slash (|), is used in mathematical notation in place of the expression "such that" or "it is true that.
  • UPS - An uninterruptible power supply (UPS) is a device that allows a computer to keep running for at least a short time when the primary power source is lost.
  • upskilling - Upskilling is a workplace trend that facilitates continuous learning by providing training programs and development opportunities that expand an employee's abilities and minimize skill gaps.
  • uptime - Uptime is a computer industry term for the time during which a computer is operational.
  • uptime and downtime - Uptime is a computer industry term for the time during which a computer is operational.
  • Uptime Institute, Inc. - The Uptime Institute, Inc.
  • Uptime Institute’s data center tier standards - The Uptime Institute’s data center tier standards are a standardized methodology used to determine availability in a facility.
  • URI - A URI (Uniform Resource Identifier) is a sequence of characters that identifies a logical or physical resource on a network.
  • URL - A URL (Uniform Resource Locator) is a unique identifier used to locate a resource on the internet.
  • URL (Uniform Resource Locator) - A URL (Uniform Resource Locator) is a unique identifier used to locate a resource on the Internet.
  • URL manipulation - URL manipulation, also called URL rewriting, is the process of altering (often automatically by means of a program written for that purpose) the parameters in a URL (Uniform Resource Locator).
  • URL manipulation (URL rewriting) - URL manipulation, also called URL rewriting, is the process of altering (often automatically by means of a program written for that purpose) the parameters in a URL (Uniform Resource Locator).
  • URL rewriting - URL manipulation, also called URL rewriting, is the process of altering (often automatically by means of a program written for that purpose) the parameters in a URL (Uniform Resource Locator).
  • URL shortening - URL shortening is the translation of a long Uniform Resource Locator (URL) into an abbreviated alternative that redirects to the longer URL.
  • URN - A URN (Uniform Resource Name) is an Internet resource with a name that, unlike a URL, has persistent significance - that is, the owner of the URN can expect that someone else (or a program) will always be able to find the resource.
  • URN (Uniform Resource Name) - A URN (Uniform Resource Name) is an Internet resource with a name that, unlike a URL, has persistent significance - that is, the owner of the URN can expect that someone else (or a program) will always be able to find the resource.
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