Backup Fundamentals Part1 What is Backup and Types

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Backup

In information technology, a backup, or data backup is a copy of computer
data taken and stored elsewhere so that it may be used to restore the
original after a data loss event.

Backups can be used to recover data after its loss from data deletion 
or corruption, or to recover data from an earlier time.

Backup Type

Normal / full backup
Copy
Incremental
Differential
Daily

Normal / Full backup:
-Backs up selected files, and marks each file as backed up.

Copy:
-Backs up selected files, but does not mark any as backed up.

Incremental
-Backs up selected files only if they were created or modified
since the previous backup.

Differential
-Backs up selected file only if they were created or modified since the previous backup, but does not mark them as backed up

Daily
-Backs up only files that were created or modified today
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[samolf]

Hi Eng. Latif, could you please share with us the slides ? many thanks