what is git?
1. Git is a powerful version control system.
   2. To track changes in code, collaborate on projects, and manage different versions of software.
   3. It allows for branching, merging, and reverting.vcs[version control system]:
*It is an software configuration management or source code managemnet.
 Types:
     *CVS(centralized version control system).
     *DCVS(decentralized version control system).