Have you ever had your computer crash? Been infected with a virus, spyware or trojan? Or made the silly mistake of overwriting an existing file when you shouldn’t have? Installed a piece of hardware or software that made your computer malfunction? These type of things happen to everyone, experienced computer user or not.
If any of the above happens, you can loose everything. The operating system and programs can be replaced but your work (letters, pictures, etc.) can not unless you have performed a computer back up.
What is a Computer Back Up?
A computer back up is essentially a copy of the information on your computer. The copy can be a full back up,an incremental back up, a differential back up or a selective back up.
Types of Computer Back Up
As mentioned above there are different types of computer back up. Each will require a different amount of time to perform and may require a different type of back up medium.
Full Back Up
A full back up, as the name implies, is a back up of everything on the computer.The operating system, your settings,the software installed and your files are all backed up (copied) to another medium.
The full back up will take a long time to perfom (depending on the amount of information on the computer) and require the largest amount of back up medium.
Incremental Back Up
An incremental computer back up will back up only the files that have changed since the last back up was performed. The time to perform this type of computer back up and the amount of back up medium required will depend on how much has changed since the last back up.
Differential Back Up
A differential back up also backs up only the files that have changed but it keeps all the changes since the last full back up.
The differential back up time and storage requirements will also vary on the amount of changes since the last full back up.Seeing each change is added to the back up copy, the amount of back up storage required grows as time progresses.
Selective Back Up
With a selective computer back up, you select specific files and/or folders on the computer to be backed up.
Again, the time required and the amount of back up storage medium required will vary depending on how much has to be backed up.
If any of the above happens, you can loose everything. The operating system and programs can be replaced but your work (letters, pictures, etc.) can not unless you have performed a computer back up.
What is a Computer Back Up?
A computer back up is essentially a copy of the information on your computer. The copy can be a full back up,an incremental back up, a differential back up or a selective back up.
Types of Computer Back Up
As mentioned above there are different types of computer back up. Each will require a different amount of time to perform and may require a different type of back up medium.
Full Back Up
A full back up, as the name implies, is a back up of everything on the computer.The operating system, your settings,the software installed and your files are all backed up (copied) to another medium.
The full back up will take a long time to perfom (depending on the amount of information on the computer) and require the largest amount of back up medium.
Incremental Back Up
An incremental computer back up will back up only the files that have changed since the last back up was performed. The time to perform this type of computer back up and the amount of back up medium required will depend on how much has changed since the last back up.
Differential Back Up
A differential back up also backs up only the files that have changed but it keeps all the changes since the last full back up.
The differential back up time and storage requirements will also vary on the amount of changes since the last full back up.Seeing each change is added to the back up copy, the amount of back up storage required grows as time progresses.
Selective Back Up
With a selective computer back up, you select specific files and/or folders on the computer to be backed up.
Again, the time required and the amount of back up storage medium required will vary depending on how much has to be backed up.
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