DIFFERENTIAL BACKUP
\dˌɪfəɹˈɛnʃə͡l bˈakʌp], \dˌɪfəɹˈɛnʃəl bˈakʌp], \d_ˌɪ_f_ə_ɹ_ˈɛ_n_ʃ_əl b_ˈa_k_ʌ_p]\
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A kind of backup that copies all filesthat have changed since the last full backup. Eachdifferential backup will include all files in previousdifferential backups since the full backup so to restore aversion of a file, you only need to search the full backup andthe relevant differential backup.Some systems support differential backup by associating an"Archive" flag with each file and setting this flag wheneverthe file is modified to indicate that it should be included inthe next backup. A differential backup does not change thisflag, whereas an incremental backup resets it.
By Denis Howe
Word of the day
Platidiam
- An inorganic water-soluble platinum complex. After undergoing hydrolysis, it reacts DNA produce both intra interstrand crosslinks. These crosslinks appear to impair replication and transcription of DNA. The cytotoxicity cisplatin correlates with cellular arrest in G2 phase cell cycle.