Hi @Neo @ hicksd8 and @MadeInGermany thanks for your time and attention.
The problem was the Computer Hardware, because I did many tests with and without keyboard and mouse, and using another keyboard and mouse, but every time the same problem. So yesterday another Computer Hardware arrived, and all works good.
So, in conclution the first Computer Hardware have problems in the USB Ports or Chip Graphics.
I have installed now Solaris 8
Taking advantage of the thread ... is there a way to use the autocomplete in Unix? .... within Linux the autocomplete is done with the 'Tab' key.