Example with a context:
There have been hundreds of programming languages since the start of computing. But at any given time there are perhaps a dozen or so that are popular and by popular I simply mean that language is used in a lot of current software, it's used by large numbers of people, and there is an active community and a significant job market for that language. Now as the years go by, different languages wax and wane in popularity. New languages do come along. Some are a big hit but most of them aren't. So this list changes, but it changes slowly.
Here's the audio version of the script. And if you take a close listen, you will hear that he does say a big hit, even though on the webpage, there's no a. I think that's just an editorial mistake. But my question is about the meaning of this expression. How do you understand it? Is it like hits in pop music where songs that are currently popular are called hits? So, in effect, this says that some of the new programming languages that come into existence become very popular in the IT industry and stay there for decades because everybody just loves them, but some don't become as popular and after a while just simply vanish from the computer technology stage forever. Am I on the right track with this?
Thank you guys for your answers in advance.