The computing system includes a neural network system configured to drive an artificial neural network (ANN); and a quantization system configured to quantize the ANN, wherein the quantization system is further configured to quantize parameters of the ANN to generate the quantized parameters of the ANN, generate a quantization error of the parameters of the ANN based on the parameters of the ANN and the quantized parameters, generate a compensation bias based on the quantized parameters and the quantization error of the parameters of the ANN, and transmit the generated quantized parameters and the compensation bias to the neural network system.