Distributed source control or Distributed Version Control System (DVCS), as the name might suggest, is neither source control for a distributed team, nor a source control system that operates on multiple computers. Distributed source control refers to how repositories can be interconnected and how commits can proliferate throughout the interconnected repositories.
For example, in a DVCS, the local computer acts as its own SCC. You can commit changes to your local SCC as often as you want and never be connected to the master source SCC. Only when you want to consolidate your changes back to the master do you need to actually connect to it, at which time you push your changes up the master.
A DVCS works slightly differently than a centralized SCC. For one thing, each local copy of the master is technically a branch, as you're committing to that branch in isolation from the master. If you view committing a change as one that gets committed to the master, then you...