Running and Cloning the Program
A prerequisite for either running or cloning from Colab is having a Google Account. If you have Gmail you presumably have a Google Account. They say:
Every Google Account comes with 15 GB of storage that’s shared across Google Drive, Gmail, and Google Photos.
But there won’t be any permanent changes made to your Google Drive.
Running
Push this button at left so that Colab will spin up a temporary environment for running the program.
The following notices appear in turn, asking if you wish to use your Google Drive:
After selecting Connect to Google Drive:
Select your Google Account:
Choose Run All from the Runtime menu.
This spinning-up begins, and takes a while. System messages report progress.
Then the program actually runs.