PG-TRB (COMPUTER INSTRUCTOR) Padasalai -

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laalia. i.Nlaalia. i.Nlaalia. i.Nlaalia. wwwwww 3wwwwetetetetetetetetNNNNNNNN.iiiiiiiiaala wwwwwwwwwwwwwwwwwwwwwwA NOTtet called an inverter.tet circuit has one inputetet gate (Figure 1.3)i.Nis.NealsoeTheetetNNNNNN.iiiiiiiaaaaa one output. Thealala is the complementaslalandasoutputaslalofa the input. If the laslaasssssaaaaaaaaaaddddda ada ada ada ada wwwwwwThe Booleanexpression for wNOTetet gate is Y Ā ala A Y a ada ada ada ada wwwwwwwwwand thetetet circuit is called ddaaaaaaaaaa.P.P.P.P.P.P.P.P.P.PwwwwwwwwwwXOR gate iiialaala twola(Figure 1.6)agateOR gate.asItashassaaslaalXORsaaslaalais an daaaaaaaaaa.P.P.P.P.P.P.P.P.Pinputs andoutput. For a twowinputXOR gate, the outputis.Phigh when the etetetNNNNNNNN.iiiiiiiiaaaaaathe output sofaslaanlaXOR gate is high swhenaslalgeneral,aslalathe number of onofthewwwwwwwwwwwwwwwwwwwwwwwwwwwwwwXORt gate ise etetetetetetetNNNNNNNN.iiiiiiiiaaaaaaaallllasYal A.B A.Basalasalasalaslaasssssaaaaaaaaaaddddda ada ada ada ada wwteteAcademy,etet Mills Road, PeravalluretetetetKalamNo.S.186,Paper(Opp.to aalaalaalaalaalaalaadasasdasasdasasdasasdasas

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laalia. i.Nlaalia. i.Nlaalia. i.Nlaalia. wwwwww lllLaws of aaaaddddda ad Commutative .law:a ada ada ada wetetA B B saasasaasasaasasaasasaaslaaaaaaaAB A wwwwwwwwwww wwwwwwwwwwwwwwwwwwwwwwwwwwwetetA (B C) (Ai. N.B)ete laaslaasssssaaaaaaaaaaadadada d (A.B).CadadadadadadC A. addddda ada ada ada ada wwA. (B C) A.B wwof Boolean algebra:wwwwwwOther laalasaaslaalasaaslaalasaaslaa1. A 0 wwwwwwwwwwwwwwwwwwwwwwwwwwetet2. A 1 .P. P.P.P.P.P.P.P.Pwwwwwwwwww3.AA wwwwwwwwwwwwwwwwwwwwetetA 4. A lasalaslaa 1 5. A .0asaasalssssaaaaaaaaddddda ada ada ada ada wwteteAcademy,etet Mills Road, PeravalluretetetetKalamNo.S.186,Paper(Opp.to aalaalaalaalaalaalaadasasdasasdasasdasasdasas

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PG-TRB (COMPUTER INSTRUCTOR) DIGITAL ELECTRONICS Fundamental Concepts: NAND, NOR, Exclusive-OR, Boolean Algebra Basic logic circuits with one or more inputs and one output are known as gates Gates are used as the building blocks in the design of more complex digital

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