http://tabajara-labs.blogspot.com.br/2013/08/alguem-conhece-o-i7000-da-itau…
This is the brazilian I7000 CP/M computer. If I'm not mistaken, the
first computer from Itautec. I'll dump the EPROMs and make it avaiable
soon.
This computer had two unique features: one is shown in your pictures,
which is the ROM cartridge based software (allowing the 8 inch floppies
to be optional) and the other was the use of the National NSC 800
processor (Z80 compatible).