SOC isn't a source control system. You need to have your own source control system to use it.

If you don't have one already, here are some ways to set up a repository with the following source control systems:

Git

The easiest way to set up a Git repository is using GitHub, a Git repository hosting service. See the GitHub guide to getting started.

For instructions on setting up your own Git server, see Install your own Git server (Linux Magazine).

SVN

For information about setting up an SVN server, see:

• Chapter 6 of the Subversion documentation - Server Configuration (svnbook.red-bean.com)
• Chapter 3 of the TortoiseSVN documentation - The Repository (tortoisesvn.net)

TFS

See Set up TFS on a server (Microsoft documentation).

Vault

See Getting started with Vault (Vault documentation).