A podcast is a pre-recorded broadcast that individuals can download or stream for playback on a PC or mobile device. Typically, the structure of podcasts is that of a talk-show format with one or more people discussing a topic. The term "podcast" is an amalgamation of "broadcast" and "iPod".
Originally, podcasts were almost exclusively available for download from websites for later playback. In 2005, Apple added native support for podcasts on its iTunes service. This gave podcast producers a large platform on which to offer their programs and significantly contributed to the overall popularity of podcasts. With the prevalence of mobile phones and streaming music, as of 2015, many people acquire podcasts via podcatchers, programs that automatically download new podcasts that a user selects. This gives a user on-demand access to the podcasts the he listens to without having to go to the podcast website and manually download it.