| Subject | English | Japanese |
| comp. | n backup copy | バックアップ・コピー |
| comp., MS | backup copy | バックアップ コピー (A duplicate of a program, a disk, or data, made either for archiving purposes or for safeguarding files) |
| comp. | n backup copy | バックアップコピー |
| comp., MS | backup shadow copy | バックアップ シャドウ コピー (A shadow copy of a replica created by the DpmBackup command-line tool. In DPM, backup shadow copies are used to archive replicas to tape) |
| comp., MS | copy backup | コピー バックアップ (A backup that copies all selected files but does not mark each file as having been backed up (in other words, the archive attribute is not cleared). Copying is useful if you want to back up files between normal and incremental backups because copying does not affect these other backup operations) |