Backup with Time Machine to a disk connected to your Mac

Time Machine to a disk connected to your Mac There are other apps that can back up your files to an external hard disk, but Time Machine is simple, built-in, sure to be supported, and offers file versioning as well as simple backup; that is, older copies of your files are stored alongside the current one so that you don’t have to restore the most recent version, but can step back through time to grab

"Backup with Time Machine to a disk connected to your Mac"