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Which of the following has a real time clock?

a) Galileo Gen 2
b) Rasberry Pi
c) Arduino
d) Rasberry Pi 3

Answer: a
Explanation: The Rasberry Pi, as well as most Arduino, does not have an on board real time clock. The Galileo boards have a real time clock, requiring only a 3V coin cell battery. The boards can therefore keep accurate time without being connected to either a power source or internet.

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