The answer is The Internet. It is a vast global network that is made up of many smaller interconnected networks. It connects to millions of computer units world wide, in which any computer can communicate with any other computer as long as they are both connected to the Internet. It also made access to information and communication easier.
Search engines - there was no single way to ask a question
I would say 3-D model!!!! not 100% sure but this sounds most correct!