Answer: The three RGB colors are each 8-bits (possible values [0.. 255], 2 to the power of 8 = 256) of each of Red, Green, and Blue. The three 8-bit RGB components can create up to 256×256×256 = 16.7 million possible RGB color combinations, called 24-bit "color".
Explanation:
I would use a biometric machine that scans a fingerprint and a eye retina then calls up my bank information from the scan. Who wants to carry a card around anyway?
Your answer would be a type