[Typo3] what's the difference between extension and plugin

[Olivier Dobberkau]

Bing Du wrote:

> In the world of Typo3, what are extensions and what are plugins?

hi

as far as i know:

extensions is the name for all things (typo3 geekspeak thingie) giving typo3 
more functions using the api.
plugins are part of the extensions.

http://typo3.org/extensions/what-are-extensions/

olivier