When you start using Git in a new computer you need to setup some basic steps to configure Git for the first time, and to be ready to work in a git console.
This is a very basic guide of Git for beginners. Git is a version-control system for tracking changes in files associated to projects of different types. It is primarily used for source-code management in software development, but it can be used to keep track of changes in any set of files.
Without a version control system, you probably used to frequently save copies your work-in-progress in zip files. But when you feel that your work is a mess and you need to get back to a previous version of some files, how to deal with mixed changes in files? It’s a real pain to do that. Git and other version control systems like SVN are a great solution.