What do the sensors CCD and CMO in the camera mean?

Simply put, this is a photosensitive element, and its function is similar to that of traditional film. Their manufacturing processes are different and their principles are different, but this is not what we care about, what we care about is the final effect. At low sensitivity, the imaging quality of CCD is not bad, but at high sensitivity, the noise is serious. At high sensitivity, CMOS has good image quality and less noise, but at low sensitivity, it is not as delicate as CCD. Of course, this is relative. With the development of technology, high-end CMOS has excellent performance at low sensitivity, and even some low-end entry-level SLR have begun to use high-quality CMOS. In the near future, CCD photosensitive elements will inevitably be replaced by more adaptable CMOS.