A podcast is mainly a collection of digital media files, both audio and video. These types of media files are out at regular intervals and can be downloaded from internet. Actually podcasting is a fresh form of online media liberation. There are unique client software applications known as podcatchers (like iTunes or Winamp). Podcathers are usually used to automatically detect and download new files in the series at the time of releasing. The files are accessed by a centralised zed web feed which list the files in a particular series. As a result new files can be easily downloaded by the podcatcher and the files are kept on the computer or another storage device. A podcaster is the individual who generates the content.

Origin of the name: – At first the name was mentioned by Ben Hammersley in February 2004 in the famous newspaper ‘The Guardian’. It is the combination of two words “iPod” and “broadcast”. The term podcasting has come from Apple’s iPod. Though the name has come from iPod, it is not necessary to use iPod for podcasts. Actually the term podcast stands for “Personal On Demand broadcast”.

History of Podcasting: – Podcasting first came into light or in the public knowledge at the end of 2004. Though between the years 1998-2001, many podcasts were produced by chief companies like Real Networks and

Types of Podcast: – Till now there are mainly two types of podcast-

  • Video podcast – Video podcast is same as podcast but it is used for video clip content available on internet via Atom or RSS feed. A good example for video podcast is Web television. Video podcasts are generally distributed as a file or as a stream from web server. Thus after downloading the complete video podcasts, it has capacity to play it on offline.
  • Enhanced podcast: – It is multimedia format which displays images along with audio in time. This is used for presentation and for delivering lectures with the help of PowerPoint like slide show. The only drawback of enhanced podcast is that it is not universally supported.

Create your own podcast: – Podcasting helps to create your individual audio files (commonly in MP3 or WMA formats). Then these audio files are released online on the internet and subscribed by RSS (Really Simple Syndication) reader. Then these files can be downloaded by the listeners to any kind of storage device like iPod, cell phones or computers. Podcasting provides the facility to generate your personal syndicated online talk show or any kind of radio program.

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