What Are The Types Of Backup? Explain Each?

The first backup before any other is the full backup which stores all your folders and files that are selected for backup. Then there is the differential backup which backup all your files that changed after you did your last full backup. Incremental backup copies all files that have changed since the last full or differential backup. The last one is the mirror backup which is the same as full backup except  for that it does not store the files in zip format and they cannot be protected by a password.