How can I record audio through my USB port?

Episode 1088 (1:48:58)

Karen from Diamond Bar, CA

Karen's new computer only has one port that she can connect and record from. How can she record and hear at the same time? Leo says to use a USB Mic. It'll do both, and it's digital. Far better than the minijack port for the microphone. Karen can use Audacity and it'll record directly from the source.