Adder and Subtracter

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Across
  1. 1. A digital circuit that performs binary addition.
  2. 6. The output of an adder circuit.
  3. 7. A circuit that subtracts two binary digits without borrow.
  4. 9. A universal gate that can be used to implement any logic function.
  5. 11. A mathematical representation of a logic function.
  6. 12. A standard representation of a logic function as a product of maxterms.
  7. 13. A term in the Sum of Products representation.
  8. 14. A circuit that converts binary input into multiple outputs.
  9. 15. The bit required in binary subtraction when the minuend is smaller.
  10. 16. A circuit that adds two binary digits without a carry input.
  11. 21. A circuit that converts multiple inputs into a smaller number of outputs.
  12. 22. A universal gate that can be used to create any logic function.
  13. 24. A logic gate that flips the input state.
  14. 25. The process of reducing a Boolean expression.
  15. 27. A circuit that adds two binary digits along with a carry input.
Down
  1. 2. The output of a subtractor circuit.
  2. 3. A circuit that selects one of many inputs and forwards it.
  3. 4. A digital circuit that performs binary subtraction.
  4. 5. A graphical method for simplifying Boolean expressions.
  5. 8. A tabular representation of a logic function.
  6. 10. A standard representation of a logic function as a sum of minterms.
  7. 17. A circuit that subtracts two binary digits with borrow input.
  8. 18. A theorem used to simplify logic expressions.
  9. 19. A term in the Product of Sums representation.
  10. 20. The fundamental principle behind digital circuits.
  11. 23. A type of algebra used for digital logic.
  12. 26. The extra bit generated in binary addition.