Directly from Jupyter’s website:
Project Jupyter exists to develop open-source software, open-standards, and services for interactive computing across dozens of programming languages.Jupyter’s Website
Another way, Jupyter is the group behind everyones favorite notebook. We call these the common “Jupyter Notesbooks.”
The Jupyter project used to be called IPython, but have since expanded to other languages.
If you want to download Jupyter notebooks, we recommend heading over to Anaconda and following the download instructions there. Jupyter notebooks come standard with the Anaconda package.
Check out more Python Vocabulary on our Glossary Page