UAC (User Account Control) is the Windows feature that runs apps with standard rights and asks for consent or credentials before granting…
Ubuntu is a Debian-based Linux distribution released every six months, with long-term support versions widely used on desktops, servers and clouds.
UDP, the User Datagram Protocol, is a connectionless transport protocol that sends independent datagrams with minimal overhead and no delivery guarantee.
UEFI is the modern motherboard firmware interface that initializes hardware, runs boot loaders and replaces the legacy BIOS on current PCs and…
UFW is the simplified host firewall frontend in Linux that turns short allow and deny commands into netfilter rules for iptables or…
UI automation operates software through its user interface, finding screen elements and simulating clicks and keystrokes when no API is available.
A UI component in interface design is a reusable, self-contained element such as a button or input field, with defined variants, states…
UiPath is a robotic process automation platform for building, deploying and managing software robots that operate business applications like people do.
An ultrasonic sensor measures distance by timing the echo of a high-frequency sound pulse, giving robots cheap and reliable short-range obstacle detection.
The umask in Linux is a per-process mask that removes permission bits from newly created files and directories, setting their default access…
Unattended automation in RPA runs software robots on servers or virtual machines without human involvement, triggered by schedules, queues or events.
A unit test is an automated check that runs one small piece of code, such as a function or class, in isolation…
Unity is a cross-platform game engine with a visual editor and C# scripting, widely used for mobile, indie, 2D, 3D, VR and…
Unreal Engine is the Epic Games real-time 3D engine used to build games and visual productions, known for Nanite geometry, Lumen lighting…
Unstructured data is information without a predefined schema, such as text, images, audio and video, that must be interpreted before it can…
A UPS, or uninterruptible power supply, keeps computers and network gear running on battery during outages and shields them from power disturbances.
Uptime is the share of time a server or service is running and available, usually expressed as a percentage such as 99.9…
A URL, or Uniform Resource Locator, is the standardized address that identifies a resource on the internet and states how and where…
Usability testing in UX design observes real people attempting realistic tasks with a product to find where the interface causes confusion or…
Usage-based pricing is a SaaS pricing model in which the customer pays according to measured consumption, such as API calls, gigabytes or…
Usage rights define how, where and for how long a brand may use a creator's content in a partnership, and they are…
USB-C is a reversible 24-pin connector standard that carries USB data, video alternate modes and up to 240 W of USB Power…
A USB microphone is a microphone with a built-in preamp and analog-to-digital converter that sends digital audio straight to a computer over…
USB4 is the USB specification that tunnels data, display and PCIe traffic over a USB-C link at 20, 40 or 80 Gbit/s,…
User experience is the sum of a person's perceptions and responses when using a product or service, shaped by usefulness, usability, trust…
A user interface is the layer through which people perceive, operate and control a digital system, combining screens, controls, feedback and interaction…
A user journey in UX design is the sequence of steps, touchpoints and emotions a person goes through while pursuing a goal…
User research in UX design is the systematic study of users' behavior, needs and context to inform product decisions with evidence rather…
A user story is a short product management statement describing who wants a capability, what they want and why, used to plan…
UTM parameters are tags added to a URL that tell analytics tools which source, medium and campaign sent a visitor, a basis…