High intelligent graph exchang software system; Graphically programming and vector programming; 3B, G codes compatible, communicating with microprocessor; DXF, AUTOP graphic document,CAD character library document; Hard disk with big processing and storage capacity; Return, retreat and stop functions for graphing ordinary curves; Simultaneous indication of processing tracks and data, power—off memory function; Interaction of four shafts, processing special shaped surfaces; Parallel work, inputting program while processing.