Which of the following is an input device that utilises a light-sensitive detector to select objects on a display screen?
A. Light pen
B. Magnetic ink character recognition (MICR)
C. Optical mark recognition (OMR)
D. Bar code reader
Answer:A
Which of the following is an input device that utilises a light-sensitive detector to select objects on a display screen?
A. Light pen B. Magnetic ink character recognition (MICR) C. Optical mark recognition (OMR) D. Bar code reader