Or Gate

1. Or Gate

The Or gate returns true, when either of the inputs are true.

2. Implementation (Logisim)

Representation of the Or gate in the logisim software using the Nand and the Not gates only. We can represent the Or gate in both ways circuits in the image!

3. Implementation (HDL)

Representation of the Or gate in HDL using previous gates.

CHIP Or {
    IN a, b;
    OUT out;

    PARTS:
    Not(in=a, out=nota);
    Not(in=b, out=notb);
    Nand(a=nota, b=notb, out=out);
}