It's the abbreviation for Mean Corpuscular Hemoglobin. This is a measure for how much hemoglobin per red blood cell count. MCH stands for Mean Corpuscular Hemoglobin. It is a measure of the average amount of hemoglobin in each red blood cell. 9 people found this useful.
Human Interface Device (HID) Definition - What does Human Interface Device (HID) mean? A human interface device (HID) is a method by which a human interacts with an electronic information system either by inputting data or providing output. A myriad of HID devices exist. The most common are the keyboards, mice, computer speakers, webcams and headsets.
The Human Interface Device (HID) is a class for use. with Universal Serial Bus (USB). The HID class con-. sists of devices that a human may use to control the. operation of computer systems. Some of these devices. include, but are not limited to: a mouse; a keyboard; a. joystick; buttons; and switches.