System-C provides a C++-based foundation for modeling digital systems that include hardware behavior, software behavior, or both. It extends ordinary C++ with hardware-oriented concepts such as modules, ports, signals, processes, clocked execution, reset handling, and bit-accurate data representation. These features make it possible to wrap C++ logic in a System-C structure, execute it in a simulation environment, and describe behavior with the timing and concurrency expected in digital design. The technical foundation centers on System-C modules and interfaces. A module defines the boundary of a hardware block, while input and output ports define how data and control signals move across that boundary. Clock and reset input ports establish timing and initialization behavior. Data ports carry typed values into and out of the module. Port access through read() and write() keeps data movement explicit and separates interface behavior from internal computation. System-C data types are essential for hardware-accurate modeling. Bit-accurate integer types such as sc_int and sc_uint define signedness and exact width. Fixed-point types such as sc_fixed and sc_ufixed support integer and fr...