You know those descriptions of computers on Wikipedia? Yeah, at face value, they make things sound easier than they really are. Like, how do you boot a Macintosh computer? You need a boot disk. Without one, you can’t do anything useful with a Macintosh computer. Alas, the Macintosh was designed to work with significantly larger amounts of data than the microcomputers that came before it such as the Apple II, so it makes sense that you would need to insert a disk into the computer before it is usable.