Jsp container versus servlet container

I am studying servlet technology in which I heard the term servlet container and jsp container, I am confused that they are both the same or not.
The jsp page is managed by the jsp container, but the servlet is handled by the servlet container.
When searching on some site that I found in the servlet container, there is a file called page compiler that turns the servlet container into a jsp contaner when a jsp request arrives.

So, I want to know, in fact, there is a transition between these towing or both of the same things that are used interchangebly.

thank