Is the front of a computer mouse the arse of it due to the cable "tail" coming out of it, or is the front of a computer mouse the head of the mouse, as it is more of a correct shape?
The first computer mouse was apparently more of a block.
I imagine it got its name from the 'tail' part, and the fact that it now looks mouse-like is mostly a co-incidence of it now being more ergonomically shaped.