What is Cloud Computing? You might have heard these words many times, but do you know what this is ultimately Cloud? It is getting heard so much this time nowadays. As we know, computer network technologies have made a lot of progress in the last few years. Since the Internet (the most popular computer network) has expressed its existence, there has been a lot of advancement in the field of Computer Network and there has been considerable research in the fields of technologies like Distributed and Cloud Computing.