The new SD500 is the flagship of Canon's SD digicam family. Like its siblings, the SD500 is built around Canon's second-generation DIGIC II processor. Canon's second generation DIGIC II Processor (Digital Imaging Integrated Circuit) combines image processing, power management, and most primary camera functions (Exposure, White Balance, JPEG compression, gain control, and most "auto" functions) in one chip to efficiently manage camera operation



Link: Digitalcamerareview