<U> - U tag makes an underlined text.

This text has the <u>underlined words.</u>

<Ul> - UL tags define an unordered list of items.


  • code
  • script
  • tag

UDK - UDK (the Unreal Development Kit) is a free version of the Unreal engine that can be used by developers, educators, and students to create a wide variety of games and interactive software. UDK was originally released in November of 2009 and has had new releases every few months since.

UI (User Interface) - The way a person interacts with a computer or electronic device. It comprises the screen menus and icons, keyboard shortcuts, command language and online help, as well as physical buttons, dials and levers.

UMTS (Universal Mobile Telecommunications System) - broadband, packet-based wireless transmission of text, digitized voice, video, and multimedia at data rates up to and possibly higher than 2 megabits per second, offering a set of services to mobile computer and phone users. See 3G

Unbilled Usage - The voice, message and data usage that occurs after your last statement and before your next bill cycle end date. You can view your unbilled usage in My Verizon.

Unduplicated audience - the number of unique individuals exposed to a specified domain, page or ad in a specified time period.

Uniform Resource Locator (URL) - The address of your Website (i.e. www.mycompany.com)

UNII Band - The Unlicensed National Information Infrastructure radio bands include frequencies in the 5 GHz range used by 802.11a, n, and ac standards.

UniqueVisitor - The number of individual (non-duplicate) visitors to a site over the course of a specific time period. This data is determined by cookies that are stored in visitor browsers.

 Unique Browser - An identified and unduplicated Cookied Browser that accesses Internet content or advertising during a measurement period. This definition requires taking account for the potentially inflationary impact of cookie deletion among certain of the cookied browsers that access Internet content. Unique Unique user - unique individual or browser which has either accessed a site (see unique visitor) or which has been served unique content and/or ads such as e-mail, newsletters, interstitials and pop-under ads. Unique users can be identified by user registration or cookies. Reported unique users should filter out bots. See iab.net for ad campaign measurement guidelines.

Unique Device - An unduplicating computing device that is used to access Internet content or advertising during a measurement period. A count of unduplicated devices necessarily accounts for multiple browser usage on an individual computer or other computing device.

Unique users or visitors - A site’s total number of users or visitors over a certain length of time. Accuracy depends on each user logging in with a unique username to access the site.

Unity - Unity is a cross-platform game engine developed by Unity Technologies[4] and used to develop video games for PC, consoles, mobile devices and websites. First announced only for OS X, at Apple’s Worldwide Developers Conference in 2005, it has since been extended to target more than fifteen platforms.[5][6] It is the default software development kit (SDK) for the Wii U.

Universe - total population of audience being measured.

Unix -  Unix is the standard computer operating system of the World Wide Web. Since TCP/IP, the networking protocol of the Internet, has been built into Unix for decades (and thus is very robust and mature), and because of all the other benefits of Unix as a platform for multi-user software, UNIX naturally became the standard operating system for Internet servers as the Internet moved into wide use.

Unreal engine - The Unreal Engine is a game engine developed by Epic Games, first showcased in the 1998 first-person shooter game Unreal. Although primarily developed for first-person shooters, it has been successfully used in a variety of other genres, including stealth, MMORPGs, and other RPGs. With its code written in C++, the Unreal Engine features a high degree of portability and is a tool used by many game developers today.

Unresolved IP addresses - IP addresses that do not identify their 1st or 2nd level domain. Unresolved IP addresses should be aggregated and reported as such. See also domain.

UPC (Universal Product Code) - A number and barcode on a product's packaging that identifies that specific model.

Upgrade - A transaction enabling the Account Owner to purchase a new device (often times at a discounted price) for one or more wireless lines in an account.

Upgrade Fee - A fee you're charged any time you purchase a new device at a discount, with a contract extension, to replace an old device. This fee is in addition to the cost of the new device and applicable taxes. The upgrade fee does not apply when a new device is purchased at the retail price.

Upload - to send data from a computer to a network. An example of uploading data is sending e-mail.

URL (Uniform Resource Locator) - the unique identifying address of any particular page on the Web. It contains all the information required to locate a resource, including its protocol (usually HTTP), server domain name (or IP address), file path (directory and name) and format (usually HTML or CGI).

URL tagging - the process of embedding unique identifiers into URLs contained in HTML content. These identifiers are recognized by Web servers on subsequent browser requests. Identifying visitors through information in the URLs should also allow for an acceptable calculation of visits, if caching is avoided.

URL tagging - the process of embedding unique identifiers into URLs contained in HTML content. These identifiers are recognized by Web servers on subsequent browser requests. Identifying visitors through information in the URLs should also allow for an acceptable calculation of visits, if caching is avoided.

Usability - The relative ease of navigating, reading, or otherwise interacting with a website or web application.

Usage Analysis Reports - Reports an d charts showing your usage of a variety of call types over a billing period, including most expensive calls, peak hour calls and more.

Usage Charges - Charges for minutes, text messages or data usage that exceed your monthly allowances as stated in your plan.

Usage Controls - A service that lets the Account Owner or Account set calling, messaging, data and purchase limits for the lines on their account. It's being replaced by Verizon FamilyBase. See also Verizon FamilyBase.

Usage Limits - A feature of Usage Controls that enables the Account Owner to limit voice, messaging, data use, and purchases for each subscribed line on the account.

Usage Time - The length of time you can transmit calls and data on your mobile device before needing to recharge the battery.

USB (Universal Serial Bus) -  USB is a “plug and play” interface between a computer and peripherals (like audio players, digital cameras, joysticks, keyboards, and printers), which lets you plug in a device without adding an adapter card or even restarting your PC.

Usenet - Internet bulletin-board application.

User ID -  A personalized ID required when signing in to My Verizon.

User role - A grouping of user capabilities that describe the tasks a user can perform in OpenX.

User - an individual with access to the World Wide Web.

UUENCODE (Unix to Unix Encoding)  -   A method for converting files from Binary to ASCII (text) so that they can be sent across the Internet via email.

UVlayout - UVLayout is a stand-alone application for the creation and editing of UV coordinates for 3D polymeshes and subdivision surfaces. Used by professionals in the games and visual effects industries, by hobbyists of all ilks and by students, UVLayout's unique approach gives texture artists the tools they need to produce high quality low distortion UVs in significantly less time than they would by traditional methods.