Where S is the sum and C is the carry of the half adder. You can see above that the output is highlighted by green light green colour. We can also simulate the same using black box of half adder. That is, all the logic gates and their connections will be represented in a box. As you can't see the connections, it was named as black box.
Hope this helps.
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using logisim construct and simulate a half adder ( HA) and build a truth table from...
Build the truth table for half-adder and show one implementation using gates. Build a NOT gate from NOR gate. Build a NOT gate from NAND gate. Algebraic equation for XOR gate is A B bar + A bar B. Show that the algebraic equation for XNOR gate AB + A bar B bar. Draw a circuit for a 2-to-4 line decoder. 2-to-1 line multiplexer equation is given by Y = S bar I_0 + SI_1 Show an implementation of this...
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