The Ubuntu website contains many tutorials on various simple tasks using the Ubuntu operating system, and following along with some of them could teach you many of the basics. Beyond this, clicking around the interfaces will give you a much better idea of its basic capabilities, and most important buttons will display a label describing their function if you hover the cursor over them.

Package managers are tools built into Linux that allow you to install, uninstall, and update applications on your computer through the command line. Most popular utilities will have instructions on their website telling you how to install them with the package manager.

Python, a programming language popular for data science, comes preinstalled on Ubuntu Linux. With python, you can install many useful data science libraries, the most popular of these being the machine learning libraries PyTorch and TensorFlow.
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