Answers
- When might you use an FPGA?
- All of the above.
 
 - When would you use an ASIC?
- a, b, and c.
 
 - We have seen a full adder in the chapter. A half adder is a circuit that can add two inputs, in other words, no carry in. Can you complete the truth table for the sum and carry for a half adder?
 
| 
             A  | 
          
             B  | 
          
             Sum  | 
          
             Carry  | 
        
| 
             0  | 
          
             0  | 
          
             0  | 
          
             0  | 
        
| 
             0  | 
          
             1  | 
          
             1  | 
          
             0  | 
        
| 
             1  | 
          
             0  | 
          
             1  | 
          
             0  | 
        
| 
             1  | 
          
             1  | 
          
             1  | 
          
             1  |