One of the phrases we often read in technical articles these days is "Internet everywhere." Indeed, wi-fi Internet connections, often called “hotspots,” are available at thousands of coffee shops, restaurants, libraries, schools, and dozens of other places as well. I have successfully connected online from fast food burger places and while riding at 34,000 feet in an airplane However, despite the phrase "Internet everywhere," we still cannot connect online from anywhere. A few places do not have wi-fi networks. And then there is the universal question: what do we do during power failures?
The answer is simple: anyone can connect to the Internet from almost anywhere by providing their own wireless modem, or “personal hotspot,” that connects to a cell tower within a few miles. It even works during power failures, as proven yesterday and today in my neighborhood.
So how do you connect a wi-fi equipped laptop, tablet, or other computing device to a cellular tower? There are two popular solutions.