olemus
varukopeerimine, mille puhul
kopeeritakse ainult need failid,
mis on pärast viimast täielikku varundust muutunud
=
a data backup that copies all of the files that have changed since the last full backup was performed

ülevaateid
https://en.wikipedia.org/wiki/Differential_backup

https://www.codetwo.com/admins-blog/difference-differential-incremental-backup/

http://www.organizingphotos.net/backup-basics-types-backups/

https://www.atlantech.net/blog/full-backup-vs.-incremental-backup-vs.-differential-backup-which-is-best

vt ka
sammvarundus