Text: Help please, I put a red line around the question that needs to be solved.
EQUIPMENT USED:
DEV-2771, IC XOR, IC-OR, IC-AND
BACKGROUND THEORY:
A half adder is a combinational circuit that adds two binary inputs. It gives two outputs: S as the sum and C as the carry of the inputs.
A full adder is a combinational circuit that adds three binary inputs X, Y, and Z. The input Z is the carry input from another addition. It gives two outputs: S as the sum and C as the carry of the inputs.
EXERCISE IN LAB:
Fill in the following truth table of a half adder and a full adder and draw the circuit from them.
Table of full adder:
A B C Sum Carry
0 0 0 0 0
0 0 1 1 0
0 1 0 1 0
0 1 1 0 1
1 0 0 1 0
1 0 1 0 1
1 1 0 0 1
1 1 1 1 1
Table for half adder:
A B Sum Carry
0 0 0 0
0 1 1 0
1 0 1 0
1 1 0 1
Input Input Sum A B 0
Carry
0
1
1 1
0
1
1
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