Apologies for the very primitive question. I am using the online version of Jupyter notebook for some programming assignemnts because I have only an old and slow chromebook- I did not want to download anything extra on it.

A command that was presented in the classes was the magic %%time for a cell. I noticed that when I am running %%time for any cell, then the wall times are non-zero but all CPU times are zero (unlike what the lecturer had). I am guessing this is because I am using online Jupyter notebook? I would like to understand what is happening in terms of where things are being stored and processed if I were using online notebook vs downloaded anaconda. Apologies I don't have much background in the technical stuff like CPU.