What are the external structures of a digital camera?
CCD: its function is to convert the optical signal into electrical signals;
Memory: can be a card, it can be a floppy disk, can be active, it can be fixed, used to save the image;
JPEG encoding compressor: the resulting image into JPEG format;
DSP (digital signal processor): the digital signal into an image;
ADC (analog to digital converter): the analog signal into a digital signal;
