Why is a podcast called a podcast?

Related questions

1. What is the purpose of a podcast?
2. What is a podcast feed?
3. Are all podcasts free?
4. What are the advantages of a podcast?
5. How many podcast listeners are there?
6. Why is it called a podcast?
7. How does a podcast work?
8. Who has the first podcast?
9. How do I listen to a podcast?
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1. #shows
2. #ipods
3. #download
4. #linked
5. #reason
6. #broadcasting
7. #listen
8. #because
9. #broadcasts
10. #became
11. #internet
12. #their
13. #people
14. #podcasting
15. #audio