First slide

Logic gates

Question

The combination of NAND gates shown here under equivalent to - gate

Moderate

A

AND gate
B

OR gate
C

NOT gate
D

NAND gate

Solution

$t h e o u t p p u t x a f t e r A a n d B i s A . B a n d i s e q u a l t o A + B a c c o r d i n g t o D e M o r g a n' s t h e o r e m f i n a l o u t p u t y i s e q u a l t o A + B = A + B$

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