1) Fear of foreign disease
2)
An indentured servant was someone who would pay for his journey to the US or for his debt by serving the person who helped him and after a while the debt would be over and the person would be free. The person would have all rights like regular people. Slaves had no rights at all and were not even observed as people and their slavery would never end unless the owner specifically freed them. Slavery was not contractual unlike indentured serviture.
The integrated circuit was essential to the world of computation because it "<span>allowed computers to attain more computing power", both in the sense of speed and affability.</span>
