Back-up software is used to create copies of files incase the original files are lost, damaged or deleted. This process is essential in situations where data can be accidently deleted, or data could be lost to some from of cyber security issue.
There are two types of back-up:
- Full Backup - A full back-up will duplicate all files on the computer. It is the simpliest way to back-up and subsequently restore files on a computer. However the process is slow and requires large amounts of disk space for each subsequent back-up due to duplication.
- Incremental Backup - An incremental back-up initially runs a full back-up the first time it is ran, however each subsequent back-up only duplicates new or modified files. This reduces the time each back-up takes and saves on disk space. This process will cause slower restoration of files due to increased complexity.
