Transistors to Logic Gates:
How do you make:
AND OR NOT
gates.. check out the pictures here:
http://www.101computing.net/from-transistors-to-micro-processors/
Half Bit Adder
| First | Second | Result | Carry Value |
| 0 | 0 | 0 | 0 |
| 0 | 1 | 1 | 0 |
| 1 | 0 | 1 | 0 |
| 1 | 1 | 0 | 1 |
Half Bit Subtractor
| First | Second | Difference | Borrow |
| 0 | 0 | 0 | 0 |
| 0 | 1 | 1 | 1 |
| 1 | 0 | 1 | 0 |
| 1 | 1 | 0 | 0 |