Sorry for the cracked screen, still legible! :) & Vogical Truth Tables. g questi

Question

Sorry for the cracked screen, still legible! :) & Vogical Truth Tables. g questionf for the elec rwer the table L H the logrgal truth table when tfe inputs ted ayP.A.L(what logioperation is Create the logical truth table when the inputs are interpreted as N.Á. and the output is interpreted as P.A.L. (what logic operation is performed? interpretéd as P.A.L and the oysput is d) Create the logical truth table when the inputs are interpreted as N.A.L and the output is interpreted as N.A.L. (what logic operation is performed?) b) reate the logical truth table wigh the inputs are interpreted as P.A.L and the output is interpreted as N.A.L. (what lógic operation is

Explanation / Answer

here assumig P.A.L stands for positive logic

and n.a.l for egative logic

a)

clearly if we look at the lable we find output is high only when both a and b are low .so we can here the logic operation performed is NOR operation.

b)

since output is high if any one of the input is high the logic operation performed here will be OR operation.

c)

since output is high if both of the input's are high the logic operation performed here will be AND operation.

d)

In this case output is low only when both inputs are low so this is NAND logic operation

  

a(H) b(H) f(H) L L H L H L H L L H H L

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