1. X Y Z 0 0 0 0 0 1 0 1 1 1 1 1
2. X Y Z 0 0 0 0 0 1 0 1 0 1 1 1
3. X Y Z 0 0 0 0 0 1 0 1 1 0 0 0
4. X Y Z 0 0 0 0 0 1 0 1 0 1 1 0
X | Y | Z |
0 0 0 0 |
0 1 0 1 |
1 1 1 1 |
1.
2.
3.
4.
1. Adder
2. Sub tractor
3. Parity generator
4. Comparator.
Comparator.
1.
2.
3.
4.
1. Zero
2. 1
3. 4
4. 7.
Zero
1.
2.
3.
4.
1. 0
2. 1
3.
4.
0
1. Is faster
2. Is more accurate
3. Uses fewer gates
4. Costs less.
Is faster
1. x0 x1 x2……xn+x1 x2...... xn + x2 x3 …….. xn …… xn
2. x0 x1 + x2 x3 +…….. + xn-1. xn
3. x0 +x1 + x2 +……+ xn
4. x0 x1 x3……xn-1 + x2 x3 x5..... xn-1 + …….. + xn-2 xn-1 + xn
x0 x1 x3……xn-1 + x2 x3 x5..... xn-1 + …….. + xn-2 xn-1 + xn
1. (A+B)C+DE
2. AB+C(D+E)
3. (A+B)C+D+E
4. (AB+C)DE.
(A+B)C+DE