They were too large and expensive - typically a computer would fill a room and would have to have its own power supply.
Answer: Truman announces that he is ordering U.S. air and naval forces to South Korea to aid the democratic nation in repulsing an invasion by communist North Korea. The country was split along the 38th parallel, with Soviet forces occupying the northern zone and Americans stationed in the south.
Since the electoral college is a college of politicians whose job it is to know everyone and everything, we give them our votes and they vote for who should be the president. Therefore, you don't have to know who the president is, but if you give your vote to the elector then they will give it to who they know is about the ideas that you voted for. Nowadays it is much more complicated due to the scale of it all.
D. Russia was not part of the Axis powers.
I really hope that this helped you out :)