Let's recap: to get the correct sum for two bits considering the carry-in bit, we: • Use two half-adders o The inputs of the first half adder are A and B · The outputs of the first half adder are S...

Use Digital Logic Simulator

Fill-in the blank boxes with the correct LOGIC GATE/ Full/Half Adder

Extracted text: Let's recap: to get the correct sum for two bits considering the carry-in bit, we: • Use two half-adders o The inputs of the first half adder are A and B · The outputs of the first half adder are S and Cout1 o The inputs of the second half adder are S and Cin · The outputs of the second half adder are the final SUM bit and Cin Place half adder here Place half adder here A Cout2 B IO • To obtain the final Cout bit, take Cout1 and Cout2 through the logic gate above There are other ways to approach this A+B+Cin problem, and we will indeed revisit this in a later activity, but for now, congratulations on building your first full adder! Now, wire this full adder up in Digital by: 1. Open Full-Adder.dig 5. Instantiate the logic gate for Cout and make sure it faces south by 2. You should see the inputs A, B, and Cin, and the outputs SUM and right-clicking to bring up its Properties box and under the Advanced tab, setting Rotation to 270°. Cout. 3. While on the canvas for Full adder, go to Components → Custom 6. Save your work and click Half-Adder. This is the half adder you made earlier packaged neatly into a box! We're using it kinda like the way you use and re-use functions in your Python code. (The package was pre-created for you.) The blue dots on the left are the inputs A and B; the red dots on the left are outputs S and C. You can check what the sub-circuit looks like via right-click → Open Circuit. 4. Place two half-adders on the canvas and connect them as described in the recap above: Cout O SUM O