Answer: The entry of the United States was the turning point of the war, because it made the eventual defeat of Germany possible. It had been foreseen in 1916 that if the United States went to war, the Allies' military effort against Germany would be upheld by U.S. supplies and by enormous extensions of credit.
The software components are known as "system files". These files are responsible for breaking down the many tasks at hand for the computer and making sure each one is completed in the proper order.
