Our digital photos and videos of our friends, children and family or holidays would be irreplaceable if lost. And do you have time to replace your contacts lists and documents? A backup is a second copy of all your important files — for example, your family photos, home videos, documents and emails.
Instead of storing it all in one place (like your computer), you keep another copy of everything somewhere safe.
People generally back their data up one of two ways – either to an external hard drive or to the internet (commonly known as the cloud). They are both easy to use and, depending on the type and amount of data you hold, you can backup to both for extra peace of mind.
Popular operating systems, like Windows and Mac, have simple step-by-step instructions on the support pages of their websites:
Source available: Stay Smart Online