1. When J = 0, K = 0, the S and R inputs are both at 0 and hence the output is in the HOLD state.
2. When J = 0, K = 1, S input is at 0 while R can be either at 0 or 1, but output is always in the RESET state.
3. When J = 1, K = 0, S input can be 0 or 1 but R input is always at logic 0 and hence the output remains at a stable SET state.
4. When J = 1, K = 1 the Flip flop goes to complementary state of previous output i.e, flip flop toggles.
