AFAIK, the big advantage of CMOS over CCD is that CCD is a fundamentally
different process than that used by common integrated circuits. Thus, the CCD
chip must always be separate from, and have buffering and level translation
circuitry to/from, the main processing circuits.
With CMOS, the possibility exists to have an entire camera on one chip, which
will drive costs down. I expect all digicams to go CMOS in the next few years.
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