1.进制之间的转换：可以实现十进制转换成其他的进制：二进制，八进制，十六进制；2.机器码之间的转换：输入真值，可以转换成原码，反码还有补码。-1.the conversion of scales:implemant of conversion in decimal and orther scales:binary, octal, and hex.2.the conbersion of machine codes:input ttuth value,then converting into form code,complement and base complement