Build a RS latch using NAND gates, as described in your textbook. RS Latch is the basic circuit for sequential logic. It stores one bit of information, and it has 3 important states:

1. R=1 S=1 : This is called the Quiescent State. In this state the latch is storing a value, and nothing is trying to change that value.

2. R=1 S=0 : By changing momentarily from the Quiescent State to this state, the value of the latch is changed so that it now stores a 1.

3. R=0 S=1 : By changing momentarily from the Quiescent State to this state, the value of the latch is changed so that it now stores a 0.