First, look at what is version control:
Version control (version control) refers to the software development process in a variety of program code, configuration files and documentation and other documents change management, software configuration management is one of the core idea.
Second version control the most important functions:
Track changes file. When it did it, who changed what files and other information faithfully recorded. Every change file, the version number of the file will increase. In addition to record version changes, another important feature of version control is developed in parallel. Software development is often more than collaboration, version control can effectively address the development of communication problems between different versions of the synchronization and developers to improve the efficiency of collaborative development. The most common concurrent development of different versions of the software error (Bug) fix the problem can be effectively solved through version control branching and merging methods.
So what Git is?
Git is Version Control System (VCS) version control system, which is to achieve a software version control. Liao Xuefeng word excerpt of the official website for "Git is the world's most advanced distributed version control system (no one)."
Why Git?
The main difference between git and other version control systems is that: Git only care about whether the whole file data has changed, and most of the other contents of the file system only specific differences of interest, they record the specific differences in each version of each file in . The vast majority of operations in Git only need to access local files and resources without networking. This is because Git on your local disk to retain the history update all current project, so deal with it fast, this is the way to deal with the use of space for time. Use Git, even when no network or VPN under the circumstances, you can also be very happy to submit updated frequently, until the network has been re-submitted to a remote warehouse.