A podcast (or netcast) is a digital medium consisting of an episodic
series of audio, video, PDF, or ePub files subscribed to and downloaded
through web syndication or streamed online to a computer or mobile
device. The word is a neologism and portmanteau derived from "broadcast"
and "pod" from the success of the iPod, as audio podcasts are often
listened to on portable media players.
Merriam Webster defines Podcast: a program (as of music or talk) made
available in digital format for automatic download over the Internet.
A list of all the audio or video files associated with a given series is
maintained centrally on the distributor's server as a web feed, and the
listener or viewer employs special client application software, known as
a podcatcher, that can access this web feed, check it for updates, and
download any new files in the series. This process can be automated so
that new files are downloaded automatically, which may seem to the user
as if the content is being broadcast or "pushed" to them. Files are
stored locally on the user's computer or other device ready for offline
use, giving simple and convenient access to the content.
Podcasting contrasts with webcasting (Internet streaming), which
generally isn't designed for offline listening to user-selected content.
As discussed by Richard Berry, podcasting is both a converged medium
bringing together audio, the web and portable media player, and a
disruptive technology that has caused some in the radio business to
reconsider some of the established practices and preconceptions about
audiences, consumption, production and distribution. This idea of
disruptiveness is largely because no one person owns the technology; it
is free to listen and create content, which departs from the traditional
model of 'gate-kept' media and production tools. It is very much a
horizontal media form: producers are consumers and consumers become
producers and engage in conversations with each other.
Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply.