Explanation: The Department of State is responsible for promoting the foreign policies of the President and the relations with other sovereign countries. The executive brunch and the Congress have the constitutional responsibilities for the US foreign policy. The executive brunch is the Department of state. They help President to make the foreign policy and they promote the policies.
Transistor computers were built. The first mobile phones were built. Computers using vacuum tubes were invented. Computers with integrated circuits were invented. The World Wide Web was created.
