... of machinery or computer?A: hello, only the basic computer operating knowledge is required, while ... the accuracy?A: hello, it depends on which model you choose, the smaller the model is, and the more accurate it will be. The accuracy ... is within 0.02, for model 400, the accuracy is within 0.03.17. Q: what ... for computer while scanning?A: hello, the computer with medium configuration is enough, while ...