Fundamental Digital Electronics/Combinational Gates

Following the Invert and the Morgan Laws logical gates can be combined to form new gates

Buffer

----->
Y = is NOT NOT A or Y = A
A B
0 0
1 1

NOT Gate

----->
Y = is NOT A
A B
0 1
1 0

NAND Gate

----->
Y = is NOT A
A B
0 1
1 0

NOR Gate

----->
Y = is NOT A
A B
0 1
1 0

XNOR Gate

----->
Y = is NOT A
A B
0 1
1 0