The video tutorial introduces Python modules, explaining how they add functionality to programs. It covers importing modules, using the math module, and employing aliases for convenience. The tutorial also demonstrates using the help function to explore module documentation, highlights the collections module with a focus on the Counter class, and introduces the OS module for interacting with the operating system.

What is the significance of the help function when working with modules in Python?

What is the collections module and what functionality does it provide?

Describe how the OS module can be utilized in Python.