All articles starting with U
6,146 articles
Use Your Illusion II
Use Your Illusion II is Guns N' Roses' fourth studio album, released September 17, 1991 on Geffen Records alongside Use Your Illusion I; it debuted at No. 1 on the Billboard 200 with 770,000 first-week copies and features Estranged, Civil War, and You Could Be Mine.
Use Your Illusion Tour
The Use Your Illusion Tour was a worldwide concert tour by Guns N' Roses from 1991 to mid-1993, supporting the twin Use Your Illusion albums.
Use-after-free
A use-after-free (UAF) is a memory safety bug where a program accesses memory through a dangling pointer after it was freed, enabling crashes, data leaks, and code execution.
Used Cars
Used Cars: pre-owned motor vehicles sold through dealers, rental fleets, and private sales; also a 1980 Robert Zemeckis comedy starring Kurt Russell. Covers market economics, the lemons problem, and the film.
Used cooking oil
Used cooking oil (UCO), also called waste cooking oil, is fats, oils, and greases from restaurants and food processing, no longer fit for consumption, used to make biodiesel and renewable diesel.
Used cooking oil (biofuel feedstock)
Used cooking oil is waste fat and vegetable oil collected after food preparation, now one of the principal feedstocks for biodiesel and renewable diesel production.
Useful idiot
Useful idiot: a pejorative political term for a naive person exploited to advance a cause. Origin traces to 1940s Yugoslav and Italian politics; the famous attribution to Lenin is unsupported by evidence.
Usenet
Usenet, also known as Netnews, is a worldwide distributed discussion system created at Duke University in 1979, in which articles are posted to topic-specific newsgroups across independent servers.
Usenet newsgroup
A Usenet newsgroup, or news group, is a topical discussion forum on Usenet with dotted hierarchical names, where articles posted by users flood between news servers so readers everywhere see the same messages.
User (computing)
The User (computing) is an entity that interacts with a computer system; the entity may be an account that identifies, authenticates, and controls resources for people, services, and programs.
User acceptance testing
User acceptance testing (UAT) is a form of acceptance testing in software development in which intended users test a system against their requirements before release.
User Account Control
User Account Control, or Windows UAC, is a Microsoft Windows security feature that runs users with standard privileges by default and prompts for administrator approval, introduced in Windows Vista.
User agent
A user agent is software acting on behalf of a person on the web, such as a browser or crawler. In HTTP, it names a header identifying the software and operating system to servers.
User Datagram Protocol
The User Datagram Protocol (UDP) is a connectionless transport protocol of the Internet protocol suite, defined by Jon Postel in RFC 768 in 1980, offering fast, unreliable message delivery.
User equilibrium
User equilibrium, also called the Wardrop equilibrium, is a traffic assignment concept, stated by J. G. Wardrop in 1952, in which no traveler can reduce travel time by switching routes.
User error
User error is an unintended human action with a computer system or machine that causes an undesirable outcome, a label human factors science blames on design.
User experience
User experience (UX) is a person's total perceptions and responses from using or anticipating using a product, system, or service; the term also names the design discipline studying it.
User experience design
User experience design, also known as UX design, is the practice of shaping products so a person's whole interaction with them is effective and satisfying.
User Friendly
User Friendly was a daily webcomic about the staff of a fictional Canadian internet service provider, drawn by J. D. Frazer as Illiad from 1997 to 2010.
User guide
A user guide, also called an instruction manual, is a document that explains how to use a product safely and effectively, from software to machinery.
User interface
A user interface, also known as a human–machine interface, is the part of a technical system through which a person provides input and receives information and feedback.
User interface design
User interface design, also called UI design or user interface engineering, is the design of interactive computer interfaces, guided by standards such as ISO 9241-210 and Nielsen's usability heuristics.
User plane function
The user plane function (UPF) is the network function of the 3GPP 5G core that carries user data traffic, enforcing quality of service, policy, and usage reporting.
User story
A user story is a short natural-language sentence stating a software requirement from the user's perspective, who wants what and why. Originating in Extreme Programming, it is now the dominant requirements artifact in agile development.
User-Agent header
The User-Agent header is the field an HTTP client sends with each request to declare its browser, version, and operating system; it is self-reported, easily spoofed, and used for content negotiation and fingerprinting.
User-centered design
User-centered design (UCD) is an approach to product design in which the needs of intended users drive decisions, popularized by Donald Norman and Stephen Draper's 1986 book.
User-generated content
User-generated content (UGC), also called consumer-generated media, is material such as text, video, and reviews that people voluntarily create outside professional routines and share online.
Useramen
Useramen, also Useramun, was a vizier of ancient Egypt in the early 18th Dynasty, succeeding his father Ahmose Amethu under Hatshepsut and Thutmose III; he is known from Theban tombs TT 61 and TT 131.
Userhat (royal scribe)
Userhat was a royal scribe of Egypt's 18th Dynasty who served Amenhotep II and probably Thutmose IV, accounting for bread supplies and Amun's herds, known from his painted Theban tomb TT56.
Userhat (TT47)
Userhat (TT47) is the Theban tomb of Userhat, overseer of the royal harem under Amenhotep III, lost for a century until Waseda University rediscovered it at el-Khokha in 2007.