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• Kernel: A computational engine that executes the code within a notebook.

                    • Cell: A section within the notebook where code is written and executed by the kernel. When the code runs, the
                   output appears directly below the corresponding code cell.















                 Some of the important tasks you can do using Jupyter Notebook's tool bar are:


                    Icon                     Name                                         Function

                             Save and create checkpoints              It saves the code written in a notebook.



                             Insert a cell below                      It adds a cell next to an active cell.


                             Cut this cell                            It is used to cut the content of the selected cell.


                             Copy this cell                           It is used to copy the content of the selected cell.


                             Paste this cell from the clipboard       It is used to paste the copied content.


                             Run this cell and advance                It is used to execute the selected cell.


                             Interrupt the kernel                     It stops the execution of the selected cell.



                 Jupyter Notebook has a Menu bar which provides all its important functions within different menu options.
                 Let us have a look at some of the important options used for doing Python programming in Jupyter
                 Notebook. Let us study about them in detail.

                 File Menu

                 Some of the options available in File Menu are:

                    • Creates a New Notebook.
                    • Open an already created Notebook.
                    • Make another copy of an existing Notebook.
                    • Save As a new Notebook.
                    • Rename an existing Notebook.

                    • Save and Checkpoint option helps you create checkpoints that you can roll
                   back to if you need to.



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