Introduction
Photos, as you probably already know, is a program that you can use to store and edit your digital images and videos. But that just scratches the surface of what it can do. Perhaps most remarkably, Photos can keep your image library backed up and synchronized across all your Apple devices. That way your Mac, iPad, iPhone, and iPod Touch all contain the same photos, videos, and albums, all the time, which is pretty darn amazing. And by using Photos’ shared albums, your family and friends can share photos from events as they’re happening, and you can view them in a self-updating album on any device. Because your photos and videos are always available on all your devices, you can use Photos’ incredibly powerful editing tools anywhere—for example, you could start editing on your iPhone, continue on your Mac, and then finish on your iPad.
Note
Technically speaking, Photos is a database—a special kind of program that tracks all the files you tell it about. Databases perform their tracking magic by creating a support file—a library, in this case—that includes an individual record for each file you import. If that’s clear as mud, consider another app that you (likely) interact with all the time: the Contacts app on your Mac or iOS device. The Contacts app is a database that points to a file containing an individual record for each person you’ve told it about. A physical and somewhat vintage analogy is a Rolodex (database) and all the little cards (records) it contains.
Photos ...
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