Computer Terminology

Terminology begins with U
U is the standard unit of measurement for rack-mounted equipment. Racks can be used to house servers.
Stands for "Universal Description Discovery and Integration." UDDI is a protocol that allows businesses to promote, use and share services over the Internet.
Stands for "User Datagram Protocol." It is part of the TCP/IP suite of protocols used for data transferring. 
Ultra DMA
This technology for transferring data between a computer's hard disk and memory was developed by Quantum and Intel.
Stands for "Unified Modeling Language." This is a programming language that is used for object-oriented software development
Stands for "Universal Naming Convention," not just the home of the North Carolina Tar Heels. UNC is a file name format that is used to specify the location of file, folder and resources on a LAN
The Undo command is located in the Edit menu of most programs and has the shortcut "Ctrl+Z" (PC) or "Cmd-Z" (Mac). This is used to undone the last action.
Also known as UNIX, though the letters do not stand for anything. The Unix operating system was first created in Bell.
Unmounting a disk makes it inaccessible by the computer.
While downloading is receiving a file from another computer, uploading is the exact opposite. It is sending a file from your computer to other.
Stands for "Universal Plug and Play." Plug and Play describes devices that work with a computer system as soon as they are connected
Stands for "Uninterruptible Power Supply." In the technology world, it is a type of power supply that uses battery backup to maintain power during unexpected power outages.
Stands for "Uniform Resource Identifier." A URI identifies the name and location of a file or resource in a uniform format.
Stands for "Uniform Resource Locator." A URL is the address of a specific Web site or file on the Internet.
Stands for "Universal Serial Bus." USB is the most common type of computer port used in today's computers. The USB 1.1 specification supports data transfer rates of up to 12Mb/sec and  now-aging USB 2.0 standard can theoretically transfer data at a very high 480 megabits per second (mbps), or 60 megabytes per second (MBps). That's impressive, but not as much as the newer USB 3.0, which can handle up to 5gbps (640MBps)—over ten times as fast as the 2.0 .
User Interface
A user interface is the means in which a user controls a software program or hardware device.
A username is a name that uniquely identifies someone on a computer system.
Utility programs, commonly referred to as just "utilities," are software programs that add functionality to your computer or help your computer perform better. These include antivirus, backup, disk repair, file management, security, and networking programs.
See also:
Terminology begins with  ‘X’, ‘Y’ & ‘Z’
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