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Back Up External Hard Drive Mac

A hard drive is a device that stores computer data, usually in the form of files. Hard drives come in a variety of sizes, with the largest being several terabytes. They are usually connected to the computer via a cable, but some newer models include wireless connectivity.

Most hard drives today use a technology called spinning disks. These disks are divided into tracks and sectors. The controller reads these sectors and assembles the data into the files that the user …