1. A "specialized computer" is usually a conventional computer with special-purpose control logic or microprogram.

2. The sequencer then counts, and the count addresses the memory or combinational logic machine that contains the microprogram.

3. Each table entry or "word" of the microprogram commands the state of every bit that controls the computer.

4. By making good use of the intelligent measure and control function of the Microprogrammed Control Unit, the numerical-controlled and scanned direct current source is designed.

5. In the paper, a new idea of controlling and managing complicated logic circuits by on chip microprogram is suggested, since XILINX FPGA is ROM based.