WordNet
backup file
n. (computer science) a computer file dedicated to storing and updating computer backups
Usage examples of "backup file".
It meant that every computer at BSC, and the backup file copies going back for who knew how long, were likewise infected.
In a hidden backup file buried deep within the institute's system language he had located an actual copy of the report.
Choose Retrieve from Sub-Directory A, enter a backup file number, and place an insertion point beside the macro dialogue button.