OR GATES
Introduction
A logical operation which gives the value one if at least one
operand has the value one, and otherwise gives a value of zero.
Functional Expression
The functional expression of OR gates is denoted by (+).
If A and B be the two input of the OR gates, then the output of the given function is Z =
A+B,
where Z is output of the OR gates
A and B is the input of the OR gates
Circuit Diagram
Truth Table
Procedure
The procedure to verify the basic operation of logic OR gates are:
a. Take all apparatus
b. Give power supply to the breadboard,
c. Connect the jumper wire and give the positive and negative path to the breadboard,
d. Give number 7 a ground and 14 a high of the integrated circuit (IC) and the ground is
connected to the negative whereas the high is connected to the positive,
e. Take 2 and 3 number as input and 1 as the output of an IC,
f. Take the register one leg at the output path and other leg on any point of the breadboard
other than the path of the IC,
g. Put the positive leg of the led at the path of output leg of the register and negative leg at
the negative path of the breadboard.
Result
After doing the same thing which is listed in the procedure,
the led will glow. If one of it’s input is connected to the positive path in
breadboard then the led will be on and if all the inputs is connected to the
negative path then the led will be off.