Nearly all electronic devices for examples TV and mobile phones use digital electronics. Digital electronics is based on ‘logic circuits’. These circuits depend on pulses of electricity to make the circuit work. These circuits contain logic gates which process signals to show true or false. These gates are divided into 5 types NOT, AND, NAND, Or and XOR. In these articles we will try to simplify how they work as well as sgow examples and symbols used to show logic gates.

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