Your internet service provider has a domain name server, but you don't have to use it. There are good reasons why you might want to ditch the provided service and use a better one. The change is easy to make, you'll get better service, and it won't cost anything. In Short Circuits: Computers that run on MacOS are less of a target than those running Windows, but threats do exist. Let's consider some protective measures. • Those who miss the variety that radio used to provide can use a clever service to find and listen to radio stations all over the world. In Spare Parts (only on the website): COVID-19 is forcing many changes. Among them: Making security systems at financial institutions stronger, ways for people to enjoy an at-home vacation, expected changes in work-from-home policies by companies, and huge increases in at-home data consumption. • Twenty years ago: The trial to break up Microsoft was nearing an end with an order that broke Microsoft into two pieces, except that it didn't.