LOGIC GATES
CONTENT
- Meaning of Logic Gate
- Meaning of Truth Table
- Types of Logic Gates
Meaning of Logic Gate
This can be described as an act or reasoning which enables man to reach valid and reasonable conclusion and decision.
Logic functions are shown usually in a TRUTH TABLE which indicates exactly what will happen according to alternative (input) conditions. The fundamental property of any statement is either True or False. The truth-value of any statement is the truthfulness or falsity of that statement.
Boolean algebra is a means for expressing the relationship between a logic circuits inputs and outputs. Two values 0’s and 1’s are the possible values in Boolean algebra.
Meaning of Truth Table
A truth table is a means for describing how logic circuit’s output depends on the logic level present at the circuit’s input.
Types of Logic Gates
The principal or five types of logical operators are (a) OR gate (b) AND gate (c) NOT (Inverter) gate (d) NOR gate (e) NAND.
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