Uninterruptible Power Supply is an instantaneous kick-in system that powers computers for a limited period during a power failure. Provides a breathing space during which data can be saved to disk and computers shutdown properly.
URL (Uniform Resource Locator)
A technical term for website addresses.
USB (Universal Serial Bus)
A new type of serial port (or connector), faster and more versatile than its predecessors. Used to attach extra devices such as a scanner to a PC. Fitted on new PCs from around 1998. USB 2.0 is a faster version of the same thing
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