该电路具有4个4位的二进制数字作为输入和4个4位的二进制数字作为输出。它的功能是，将4个输入的二进制数字进行排序，从上往下数第一个输出端口输出的是4个数字中最小的，第二个输出端口输出的是第二小的，以此类推。(The circuit has 4 4 bit binary digits as input and 4 4 bit binary digits as outputs. It is the function of the 4 input, a binary digital sort number down from the first output port is the smallest of the 4 figures, second output port is the second smallest, and so on.)