A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

U

UDWD
Is short for Universal Digital Web Design.

Unix
A computer operating system (the basic software running on a computer, underneath things like word processors and spreadsheets). Unix is designed to be used by many people at the same time (it is multi-user) and has TCP/IP built-in. It is the most common operating system for servers on the Internet.

Apple computers’ Macintosh operating system, as of version 10 (“Mac OS X”), is based on Unix.

Upload
Transferring data (usually a file) from the computer you are using to another computer. The opposite of download

UPS (Uninterruptible Power Supply)
A system which allows computers to keep running for a limited time during a power failure. It gives you the chance to save data before your system crashes.

URL (uniform resource locator)
URL is the address of a file accessible on the Internet, such as a website address. The unique identification of a web site or web resource, such as http://www.webmotion.co.uk