backup

/ˈbækˌʌp/noun

A spare copy of data kept separately from the original so it can be restored if the original is lost or damaged.

Example sentence

“Make a backup of your files before updating the software.”

One word as a noun or adjective, two as a verb: you back up your files to create a backup.

Related words

routerA device that directs data traffic between computer networks, deciding where each packet of information should go.storageThe keeping of things in a place until they are needed, or the condition of being kept that way.headphonesA pair of small speakers worn over or inside the ears so that only the wearer hears the sound.updateNew information that changes or adds to what was already known.monitorA screen, similar to a television, that displays the output of a computer.browserA program or tool that lets a person look through and explore information.