How was the World communication during cold war?

This was the era before there was the internet, social media, or even cable TV. People communicated via telephone, by sending letters, listening to radio, watching television (there were only a few channels), or reading books, magazines and newspapers. The fact that there were only a limited number of ways to communicate with other countries made it much easier for an autocratic government, such as in the Soviet Union, to censor what people could hear or see or read.

Today, when governments try to do this, many people can usually get around it by going to social media and finding out the information their leaders are trying to hide. But during the cold war, some countries had more communication and others had much less. The United States tried, through Voice of America (VOA), to send radio programs to communist countries; a couple of music programs were allowed in, but for the most part, signals from VOA were jammed, so that people in communist countries (or "behind the Iron Curtain," as it was called back then) could not hear other points of view. And even in relatively free countries like the United States, the government consistently stressed that Communism and Communist leaders were a danger to the world and to America. People were taught to fear what the Soviet Union might do, and both the Russians and the Americans were regularly told by their media not to trust each other.