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How many of the pins of the 8051 are used for the four 8-bit parallel I/O ports?

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How many of the pins of the 8051 are used for the four 8-bit parallel I/O ports?

How many of the pins of the 8051 are used for the four 8-bit parallel I/O ports?

A) 32 pins B) 40 pins C) 36 pins D) 38 pins

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