In article , Pablo
wrote:

the mouse doesn't use cpu.

Oh, where does the interrupt handler run?

interrupt handler? it ain't the 1980s anymore.

cursors have been done in hardware for *years*.

We used to call them sprites.

this isn't sprites.

Processor still has to respond to mouse actions. Interrupts still exist,
young'un ;-)

it needs to respond to clicks but not display and moving it.