Notebook is a kind of frontend, which does something extra apart from running code. It stores the code and output with markdown nodes in an editable file known as Notebook. When actions are performed on that file, either at the client side through the web UI or on the server side, they are sent back and forth through the Notebook server. It also acts as an application and web server, which saves on disk as a JSON file with the .ipynb extension. Refer to the Jupyter documentation for more information: https://jupyter.readthedocs.io/en/latest/architecture/how_jupyter_ipython_work.html.
The following image shows the architecture of a Jupyter Notebook:
Figure 9.10: Jupyter Notebook architecture
As you can see, a user can directly ...
