<Ul> <Li> Digital camera </Li> <Li> Digital camcorder </Li> <Li> Portable media player </Li> <Li> Webcam </Li> <Li> Microsoft Kinect Sensor </Li> <Li> Image scanner </Li> <Li> Fingerprint scanner </Li> <Li> Barcode reader </Li> <Li> 3D scanner </Li> <Li> Laser rangefinder </Li> <Li> Eye gaze tracker </Li> <Li> Computed tomography </Li> <Li> Magnetic resonance imaging </Li> <Li> Positron emission tomography </Li> <Li> Medical ultrasonography </Li> </Ul> <Li> Portable media player </Li> <Li> Microsoft Kinect Sensor </Li> <Li> Eye gaze tracker </Li>

Name few input and output units of computer