A podcast is a digital audio file that is recorded by an individual or group of people to either be a single standalone media production or a series of episodes that can be downloaded or streamed through a website or app for listening.
Episodic or series podcasts operate through the use of a subscription and feed model where the listener uses their mobile/digital device or computer to listen to the podcast they have chosen as the creators upload their new content on the internet. Single standalone podcasts are created with a specific topic and audience in mind.