Anaconda is a Python distribution that includes many common packages for data science and a package management system (conda). Using Anaconda is convenient and recommended in this course.
Select the appropriate installer for your operating system from Anaconda and then follow the instructions to install it on your computer.
If you are concerned about the size of Anaconda, you can install miniconda instead. Miniconda only includes the basics, such as Python and conda, so you must install other packages by yourself.