The packaged machines use PS/2, but at 3.3V, to reduce power consumption. USB takes too much power. - Jim On Wed, 2006-09-13 at 09:25 -0300, Marcos Barbosa wrote: > 1. The keyboard and touch pad use PS/2 or USB protocol? > 2. What is the buttons in the board (the eight buttons in + > distribuition below)? > -- Jim Gettys One Laptop Per Child