2, the location of the monitor is more stringent requirements. a, the operator's eye sight angle should be appropriate. It is best to let the height of the monitor is lower than the height of the operator's eyes to ensure that a longer period of time usually monitor, will not cause too high tilted head caused by cervical spine disorder.
3, the height of the computer desktop to be suitable for the presence of sitting upright, hands comfortably flat on the front of the abdomen, longer time, then not so much as a sore arm, hand control of the keyboard and mouse position below the elbow is appropriate.