Formatting a hard drive is not exactly an essential computer skill, but it certainly is if you're a technie who's looking to start building your own computers. Hard drive formatting involves erasing/formating a hard drive or USB flash drive to be compatible with different formats like MAC OS Extended and Windows OS.
Check out the video to learn how to format a hard drive using the MAC Disk Utility. You'll also find out how to name hard drives and create partitions.
Have an iPhone? Check out all 200+ new features coming in iOS 13.