What Is QR Code?

Hello Guys Welcome To Techiestan.
Dear Friends You All Are Heard About QR code.

SO what Is This

If You Don't Know Then This Post Is Only For You.

So Let's Get Started

You must see this kind of image on some product even at online e.g paytm,BHIM etc.

So coming To The Main Point That How Is This Work

As You Know we can't Read the QR code

For reading of QR code We Need Some Scanners Which are available on our mobile Nowadays.

This technology Is Much Helpful To find some information, Accessing A website very fast

So Coming To The Point.

QR code stands For QUICK RESPONSE CODE

QR codes are In Encryted Form Which Can Read By A Scanner

It is also called as MATRIX BARCODE(TWO DIMENSIONAL BARCODE)

This QR code contains many Small black brackets Over a white background

These black brackets are of different pattern according to the information Given To That

As You Can Compare The Images Below

So These Pattern Were Taken By a Optical Device and Then That Device starts Decrypt That Using The Software Installed on that called REED-SOLOMON ERROR CORRECTION

So These are The Patterns Which Your camera reads

Format Information

Message Placement Within The QR Code

So Our QR codes can be encoded in

Numeric,Alphanumeric,Binary and Kanji

Now You Must Have A Question That If The QR Code image Has Been broken or some watermark were posted on that then

How The Scanner Reads That??

If You Can't Understand Then See The Below Images

By observing above Images/QR CODES

One Is Broken And Other is Watermarked

So the solution is here

Thanks to the error correction technology which enables the scanners To Read The QR Code Efficiently

Thanks For Reading My Article . Hope I Can Cover All Main topics