If you are looking for a state of the art Point of Sale system, then Carroll Data Processing Inc. has the solution for you. Since 1977 we have been installing and servicing Point of Sale systems across the nation. Some of our Clients include: Ritz Camera Centers, Duron Paints, C&O Railroad, Star (Getty) Refinery, Maryland School for the Blind, Carroll County Hospital, Unicorn Books, Wordsworth Books