answer:As far as I know, Time Capsule is a service built in to all newer Macs; I didn’t have to buy Time Capsule itself, just an external hard drive. I designated it as a Time Capsule device, and the program did its own thing. As far as I know, it pretty much just copies every single file on your computer to the external device in folders, where you can access them later. Those folders should easily be accessible from other computers. Sorry I can’t tell you more; although I do use Time Capsule for backup, I’ve never had to do much with it beyond plugging in my external HD and let it copy my files.