The laser beam used to read the data without the coating aluminum plastic sheet welding laser light reflection and echo back to the reader, the data which is called Photo Detector by the bottom of the CD-ROM will contain a hole called the pit, each hole is small, approximately 1.6 microns, which is if the laser light the laser light to the plate already. Laser reflection of the area around the hole with no holes, it is so different. The values are different, the internal circuit and it is a signal of 0 to 1 to send to CPU leading to further processing.
การแปล กรุณารอสักครู่..
