Easy way to understand What is Logic Gate.

The easy way to understand What is Logic Gate.

If you are interested in electronics, then you need to know about What is logic gates because everything in electronics is made up of logic gates. Integrated circuits (ICs) are built of logic gates. You will get much information about logic gates on books and the internet but in this post, you will learn basic of logic gate which is more important.

             At first, we will learn actually what a Logic Gate is. Logic Gates is the digital electronics circuit. We already have known that every electrical and electronic circuit have input and output. Similarly, logic gates have input and output. Now a question is arise why it is called a digital circuit. Logic gates are called digital circuit because here the signal (input or output) must be one of two discrete levels. Each level is interpreted as one of two different states (example ON/OFF or High/Low).

                 You can call Logic Gates as an electronic switch. Now an important topic is that how Logic gates are made or what inside a logic gate. Logic Gates are primarily implemented using diodes or transistors, but can also be constructed using vacuum tubes, electromagnetic relays even mechanical elements. In modern practice, most gates are made from Field Effect Transistors, particularly MOSFETs (Metal Oxide Semiconductor Field Effect Transistors).

   There are many devices like Multiplexer, Registers, ALU, Flip-Flops are made of "Logic gates".

Logic Gates are available in form of IC. Like  IC7400, IC7408, IC7404 etc.

Read Also: 

• Transistor behind the progress of the whole world.
• What is Binary Coding? Concepts of Binary number?
• What is Semiconductor Material? Examples.

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