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The CPU, the Central Processing Unit, is known as the heart of the computer. It is responsible for carrying out the instructions of a computer program by performing the basic arithmetic, logical, control, and input/output (I/O) operations specified by the instructions.

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What is the function of the capacitor and the diode here?

The diode is used to quickly discharge the capacitor on a power-down spike so that the circuit will hold the reset low when powered back up. Without the diode, then a transient dip that lasted less …
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