# Starting with Jupyter (5 minutes) In any web browser (laptop, desktop, tablet), go to .[^f44] You'll be prompted for your Nevis account name (just the name, no "@") and password.[^f45] When you visit notebook for the first time, you'll see the Jupyter "home" window with the files in your home directory. You can perform elementary file operations from this screen: check the box next to a filename, and you'll see an option near the top of the screen to rename or delete the file. The **Upload** button near the top left allows you to copy files from your laptop to the Nevis cluster. The fun part is in the pop-up menu you get from clicking the "New" button near the top left: - `Text File` will give you a basic text editor. You will also get a text editor if you click on a text file on the home directory page. The **Edit** menu within the editor page will let you select which text editor you use; you know my {ref}`favorite editor ` is Emacs, but you can use whatever you wish. - **Folder** lets you create a new sub-directory. - **Terminal** will give you access to a limited (but still useful) [terminal emulator](https://twiki.nevis.columbia.edu/twiki/bin/view/Main/JupyterTerminal). - And then we have the notebook kernels... In Jupyter, a "kernel" is an environment for interpreting commands. I installed [lots of kernels](https://twiki.nevis.columbia.edu/twiki/bin/view/Main/IPython) on the notebook server for users to explore, but for this tutorial there are only two of interest: "Python 3" (which includes an interface to ROOT)[^f48] and "ROOT C++". :::{figure-md} girls_and_boys-fig :class: align-center xkcd girls_and_boys by Randall Munroe ::: [^f44]: Take care: it's "https", not just "http". [^f45]: If you don't have an active account on the Nevis particle-physics cluster, then you won't be able to login. You'll have to {ref}`install Jupyter ` on your own system or proceed without it; go on to the next section. [^f48]: Check with your working group. They may still use Python 2.