monitor, (computer hardware)

Computer hardware: MONITORS: A monitor or display (sometimes called a visual display unit) is a piece of electrical equipment which displays images generated by devices such as computers, without producing a permanent record. The monitor comprises the display device, circuity and an enclosure. Many hardware technologies exist for displaying computer-generated output: liquid crystal display (LCD), thin film transistor (TFT-LCD), cathode ray tube (CRT), and plasma display. THe performance of a monitor is measured by display resolution ( the number of distinct pixels in each dimension that can be displayed), Refresh rate (the number of times in a second that a display is illuminated) dot pitch (the distance between pixels of the same colour in millimeters) and aspect ratios (the ratio of the horizontal length to the vertical le