LOGIC CIRCUIT /ALTERNATIVE LOGIC 1

Computer Science ICT SSS2 FIRST Term

WEEK 9

LOGIC CIRCUIT /ALTERNATIVE LOGIC 1

Content

Complex logic gates include XOR(EXCLUSIVE OR), NAND(NOT AND), NOR(NOT OR) AND XNOR(EXCLUSIVE NOT OR).

THE ALTERNATIVE LOGIC GATES WE HAVE ARE 1.NAND 2. NOR

NAND  Gate

The NAND gate is an AND gate with a reversed or inverted output.

EXAMPLE   1

If p=1 and q=1

P AND q =1 X1=1

NOT(p AND q) = 0

EXAMPLE 2

If p=1 and q=0

P AND q =1 X0=0

NOT (p AND q) = 1

NOR Gate

Is an OR gate with a reversed or inverted output.

EXAMPLE 1

If p=1 and q=1

P OR q =1 +1=1

NOT(p OR q) = 0

 

EXAMPLE 2

If p=0 and…