An accumulation caused by clogging or a stoppage

Someone who takes the place of another (as when things get dangerous or difficult)

A musical part (vocal or instrumental) that supports or provides background for other musical parts

(computer science) a copy of a file or directory on a separate storage device

The act of providing approval and support

MobileMe is a discontinued subscription-based collection of online services and software offered by Apple Inc. All services were gradually transitioned to and eventually replaced by the free iCloud, and MobileMe ceased on June 30, 2012, with transfers to iCloud being available until July 31, 2012, or data being available for download until that date, when the site finally closed completely.

cuento de Jim Butcher

Backup software are computer programs used to perform a backup; they create supplementary exact copies of files, databases or entire computers.

Backup is a British television police procedural crime drama series, devised by Nigel McCrery and Roy Mitchell, that ran for a total of fourteen episodes across two series on BBC One between September 7, 1995, and July 2, 1997.

Supporting, reinforcing; (music) of or related to accompaniment.

Standby, reserve or extra.

That is intended as a backup.