In ELC 411, Embedded Systems, the Analog Devices ADuC812 Development System is used as an embedded system to study real-time digital processing of analog signals.  The ADuC812 allows the acquisition or conversion of analog signals with its on-board 12-bit A/D converter, the digital processing of the converted data with its 8051 microcontroller, and the reconstruction of the processed digital data as an analog signal with one of the two 12-bit on-board D/A converters. Typical embedded system application are digital filtering or digital control action for feedback control system with all conversions controls and signal processing written in Intel's assembly language program.