1. A dynamic modular processing system, comprising: a processing unit comprising: a processor operably coupled to a circuit board; a bus system interposedly connected to a coupling interface and the circuit board; a first peripheral module interchangeably coupled to the coupling interface; and a second peripheral module interchangeably coupled to the coupling interface following removal of the first peripheral module from the coupling interface, wherein the coupled first and second peripheral modules are operably connected to the processor via the coupling interface, the bus system, and the circuit board.