The need for the Eject command arises from two reasons. First, if there are open files on a disk, macOS refuses to let you eject it because doing so might result in data loss. Second, the Eject ...
Take a look at the top right corner of your keyboard. Unless you’re using a recent MacBook, you’ll see a vestigial Eject key. It used to be used to eject CDs, DVDs and even floppy disks back in the ...