A backup system is a way of keeping copies of important information or files as a backup in case the original gets lost, damaged, or deleted. It helps make sure that important things are safe and can be easily restored if needed. Full definition
Perhaps the most important security measure you can take to protect your online learning platform is to have strong and multiple backup systems in place. (elearningindustry.com)
After all, you're getting a battery backup system for your computer to keep everything running when the power is out. (howtogeek.com)