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Question: computer chips are etched on circular cylinder wafers of thickness 0.60mm that are sliced from a solid cylindrical silicon crystal of length 30cm . If each wafer can hold 100 chips, what is the maximum number of chips that can be produced from one entire cylinder.
The chip alone does not make the card more secure. Using the card in a chip-enabled payment terminal adds an additional layer of security. Every time a chip card is used for payment at a chip-enabled terminal, the chip creates a unique single-use code to validate the transaction and the code cannot be used again. This process makes chip card information more difficult to steal, therefore making chip cards more difficult to counterfeit.