Called the mouse because as you can imagine it started out looking like a hard bald mouse, the name has stuck and come to be part of the jargon we use daily. It might be harder nowadays to envision the computer mouse as a mouse, but when you look back at the original ones with their cords attached you can see that it makes sense. Just like the older Logitech RX300 with its cord.
Many newer mice still have wire cords attached to them, just like the Logitech MX300. However, more and more are now cordless and operated with internal batteries. It is important that you choose a mouse within your budget as well as your comfort. You’d be surprised with how many repetitive stress injuries are occurring because of the plain old computer mouse.