What is the function of a logic AND gate?
Logic gates are used to make decisions so that electrical outputs only ‘turn on’ when the correct logic sequence has been applied. Each logic gate has a name that helps to describe how different inputs will determine the possible outputs .
What is the equation of a three input OR gate?
y = a’bc’ + ab’c’ + ab’c The combinational circuit constructed from these two equations is shown in (a) of Figure 1.4(f). . Each 3-variable AND term is replaced by a 3-input AND gate.
What is the equation of ex OR gate?
Q = ( A + B ) (A + B) = (A’ + B’) (A + B) This equation looks like it can be implemented using NOR Gates.
Why is it important to know logic gates?
Basic Logic Gates Logic gates are an important concept if you are studying electronics. These are important digital devices that are mainly based on the Boolean function. Logic gates are used to carry out logical operations on single or multiple binary inputs and give one binary output.
How are logical gates implemented in Boolean algebra?
The implementation of the logical gates are performed by the rules of the boolean algebra, and based on the combinations of the operations OR, AND and NOT. The specific gate operation is attained by using diodes or transistors that acts like a switch 0 is off (0 Volt) and 1 is on (5 Volt).
Which is the logic gate which gives high output?
The logic gate which gives high output (i.e., 1) if either input A or input B but not both are high (i.e. 1) is called exclusive OR gate or the XOR gate. It may be noted that if both the inputs of the XOR gate are high, then the output is low (i.e., 0).
Which is the combination of and NOT gate?
This basic logic gate is the combination of AND and NOT gate. This gate is the combination of OR and NOT gate. In XOR gate the output of a two-input XOR gate attains the state 1 if one adds only input attains the state 1. A. B ˉ + A ˉ. B In XNOR gate the output is in state 1 when its both inputs are the same that is, both 0 or both 1.