Input devices for computers; graphics tablets; graphics tablets provided with liquid crystal displays; tablet monitors for electronic signatures; digital notepads; computers; computer mouse; computer keyboards; protective sheets adapted for input devices for computers; electronic pens; touch screen pens; tablet computers; stands adapted for tablet computers; stands adapted for graphics tablets provided with liquid crystal displays; remote controls for graphics tablets provided with liquid crystal displays; AC adapters; electric cables; lithium-ion batteries; computer software; computer programs; personal digital assistants; computer hardware; application software; telecommunication machines and apparatus; electronic machines, apparatus and their parts.