Introduction It is amazing to me that there seems to be confusion and controversy in answering the basic question: “What is the Internet?” I have no problem in defining it and have a short and simple answer to the question based on my personal experience with its predecessor, the ARPANET, from over 40 years ago. This short essay is an attempt to explain the Internet using a simple approach with basic analogies from the past. Also some history will be reviewed about the development of the Internet. The essay will conclude that the Internet is a packet-switched network. Today that […]