Basic Logic Gates Logic Gates 1 - Virginia Tech
Computer Science Dept Va tech October 2003 2003 McQuain WD & Keller BJ1Logic GatesOO Software Design and ConstructionBasic Logic GatesandGate:accepts two binary inputs xand y, emits x & y111001010000OutputyxorGate:accepts two binary inputs xand y, emits x | y111101110000OutputyxnotGate:accepts one binary input x, emits !y0110OutputxComputer Science Dept Va tech October 2003 2003 McQuain WD & Keller BJ2Logic GatesOO Software Design and ConstructionBasic Logic GatesnandGate:accepts two binary inputs xand y, emits !(x & y)011101110100OutputyxxorGate:accepts two binary inputs xand y, emits x ^ y011101110000OutputyxThe Basic Logic Gates can be combined to form more complex digital circuits of all fact, the NOT and AND Gates alone are sufficient, but that does not really concern Science Dept V
Note that the internal gate logic is symmetric with respect to its inputs, so we can be fairly loose about which is which. Computer Science Dept Va Tech …
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