OR

input A input B output C
0 0 0
0 1 1
1 0 1
1 1 1

NOR

input A input B output C
0 0 1
0 1 0
1 0 0
1 1 0

AND

input A input B output C
0 0 0
0 1 0
1 0 0
1 1 1

NAND

input A input B output C
0 0 1
0 1 1
1 0 1
1 1 0

XOR

input A input B output C
0 0 0
0 1 1
1 0 1
1 1 0

Operation precedence