List of 50 technology terms beginning with “U”, each with a clear one-line definition—perfect for tech learners, professionals, and enthusiasts exploring areas like networking, computing, software, and hardware.
Technology words that start with U with meaning
The following are technology words that start with U:
1. Ubiquitous Computing
Computing embedded seamlessly into everyday objects and environments, enabling intelligent and invisible interactions.
2. Urban Computing
Utilizing sensors and data analytics in cities to optimize services, traffic, and resource usage.
3. Uninterruptible Power Supply (UPS)
A backup device that ensures continuous power to systems during outages to prevent data loss.
4. Uniform Resource Locator (URL)
The web address that specifies the location of a resource on the Internet.
5. Uniform Resource Identifier (URI)
A generic identifier standard used to name both abstract and real-world online resources.
6. Uniform Resource Name (URN)
A persistent, location-independent identifier for online resources.
7. USB (Universal Serial Bus)
A widely adopted interface standard for connecting peripherals and supplying power.
8. USB‑C
A modern, reversible USB connector that supports faster data transfer and power delivery.
9. Unicode
A universal character encoding system supporting virtually all written languages.
10. Universal Character Set (UCS)
The underlying character-coding framework upon which Unicode is based.
11. UDP (User Datagram Protocol)
A lightweight, connectionless protocol used for rapid transmission of data packets.
12. UDMA (Ultra DMA)
A high-speed protocol for transferring data between storage drives and controllers.
13. UEFI (Unified Extensible Firmware Interface)
Next-generation firmware interface that replaces the traditional BIOS in modern computers.
14. UML (Unified Modeling Language)
A standardized visual language used to model and document software systems.
15. UART (Universal Asynchronous Receiver/Transmitter)
Hardware interface facilitating serial communication between devices.
16. UAT (User Acceptance Testing)
The final stage of software testing where real users verify system requirements.
17. USB Hub
A device that expands a single USB port into multiple ports for additional connectivity.
18. URL Parameter
Extra data added to a URL to customize the behavior of a web request or query.
19. URL Routing
Mapping web URLs to corresponding backend application code or content.
20. Upload
Transferring data or files from a local device to a server or cloud service.
21. Upload Speed
The rate at which data is transmitted from your device to the internet.
22. Update
A software release that fixes bugs, improves performance, or introduces new features.
23. Upgrade
Replacing hardware or software with a newer, improved version.
24. Undo
A command that reverses the most recent user or system action.
25. Uninstall
The complete removal of software and associated files from a system.
26. Username
A unique identifier used to log in to a system or application.
27. User Interface (UI)
The visual and interactive components through which users engage with software.
28. User Experience (UX)
The overall satisfaction and ease of use experienced by users when interacting with a product.
29. User Account
A personalized profile with specific settings and access permissions.
30. User-Friendly
Software or interfaces designed to be intuitive and accessible for all users.
31. User-Agent
A browser or client software representing a user when making web requests.
32. User Authentication
The process of verifying the identity of a user before granting access.
33. User Role
A set of permissions assigned to a user based on their function or responsibilities.
34. User Session
A continuous period of interaction between a user and a software system.
35. Utility Software
Tools designed to maintain, optimize, or diagnose computer systems.
36. Usage Analytics
Metrics that track how users interact with software or websites.
37. Usage Data
Information recording how resources or features are used over time.
38. USB Drive
A portable flash storage device that connects via USB port.
39. User Mode
A restricted CPU execution mode preventing direct hardware access.
40. Universal Plug and Play (UPnP)
A protocol that enables devices on a network to discover and communicate automatically.
41. Unified Threat Management (UTM)
An all-in-one security solution combining firewall, antivirus, and intrusion prevention.
42. Upper Memory Block (UMB)
A legacy DOS memory area used for loading drivers above conventional memory.
43. Upper Memory Area (UMA)
A reserved segment of memory used by system or hardware components.
44. Upper Layer Protocol (ULP)
A high-level networking protocol built on top of transport-layer services.
45. Universal Naming Convention (UNC)
A standard method for specifying shared network resources by name.
46. Coordinated Universal Time (UTC)
The primary global time standard used to synchronize systems and networks.
47. Universal Windows Platform (UWP)
Microsoft’s framework for developing apps that run across all Windows devices.
48. UUID (Universally Unique Identifier)
A 128-bit identifier designed to uniquely identify objects across systems.
49. USB Power Delivery (USB‑PD)
A specification enabling fast and intelligent power delivery over USB-C connections.
50. Ubiquitous Analytics
The continuous analysis of data flows across pervasive, IoT-enabled environments.