Logic Design Visualization Tool
Computer Science: Concepts & Explorations
David Reed
Transistors
PMOS Transistor
0V
5V
0V
5V
Trans
Gates
NOT gate
OR gate
AND gate
0
1
0
1
0
1
0
1
0
1
0V
5V
0V
5V
0V
5V
0V
5V
0V
5V
Building an adder
Half Adder
0
1
0
1
carry
sum
Full Adder
0
1
0
1
0
1
carry
sum
4-bit Adder
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Storing a bit
Flip-Flop