Jose lopez portillo y pacheco
Native Americans in the United States<span> fall into a number of distinct ethno-linguistic and territorial phyla, whose only uniting characteristic is that they were in a stage of either </span>Mesolithic<span> (</span>hunter-gatherer<span>) or </span>Neolithic<span> (subsistence farming) culture at the time of European contact.</span>
They were too large and expensive - typically a computer would fill a room and would have to have its own power supply.