On something that doesn't look like a computer
Grace Digital makes several Wifi Radios. They look like old-school radios, but they play a gazillion internet radio stations.
You can also hear Brainrock on Sangean's line of WiFi internet radios (as well as several other radios and component stereo receivers that use the Frontier Silicon system.)
In Your Car
If your car's audio system as an AUX in jack, a USB connection, or Bluetooth, The TuneIn app includes a handy car-mode that makes using it as your car radio much more road-friendly.
Apple's CarPlay and Google's Android Auto also support the TuneIn app.
