Definition: Uninterruptible Power Supply: electrical device designed to step in immediately and supply power for a short time to devices such as computers when the normal mains supply fails. * Design consists of a battery that is constantly topped up plus sensing circuits that can connect the computer to the battery immediately there is any interruption to the mains supply. There is enough power in the batteries to allow current work to be saved before shutting the computer down normally until mains power is restored. UPS the best UPS units are the best cuddling and security blanket you can offer your computer and other equipment. And they are far superior to surge protector sockets when it comes to protection against sudden rises in voltage. If you live anywhere with wobbly mains electrcitiy supplies do yourself, your computer and everyone a favour and get one: they cost less than a good ink-jet printer.

Previous Term: upload  Next Term: URL

Type a photography term below to find its definition: