In this video we walk through getting Git version control installed, and then show how to do a few basic things, including how to get a copy of the latest Drupal development code. This video follows the instructions found in the Install Git lesson on learndrupal.org.
This video is installing Git on Windows, because it has the most steps involved. Installation on Mac and Linux is very simple, in that they do not have a wizard to walk through, so they are not demonstrated. All commands used on the command line in the video work on Windows, Mac, and Linux, because Windows is using the Git Bash shell which is part of the Git installation.