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Adders

Adders. Building an Adder. The Boolean operations can be built electronically using transistors. Applying an electrical current to a terminal is the equivalent to 1 or True . No current means 0 or False .

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Adders

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  1. Adders

  2. Building an Adder The Boolean operations can be built electronically using transistors. Applying an electrical current to a terminal is the equivalent to 1 or True. No current means 0 or False. Using a combination of these operations wired together, we can do simple arithmetic. Further combinations and the use of electronic storage enable use to do more complex calculations.

  3. Adder A AND D B XOR E This adds the inputs A and B. The output is shown by D and E together.

  4. Input Output + + + +

  5. D A AND XOR G B AND F XOR E XOR H C This adds the inputs A, B and C. The output is shown by G and H together.

  6. Input Output + + + + + + + + + + + + + + + +

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