Science and Technology Desk: The use of QR code is increasing day by day. The contactless technology has become more popular due to the corona pandemic . After the 60s, the world saw the Sino-Japanese Industrial Revolution. A lot of factories were being built, a lot of digital products were being made there. Collecting, storing and coordinating information on so many products was a daunting task. As a result, a lot of time was being spent apart.

Scan the QR code

QR code

By then, the barcode had been invented in the United States. Data could also be collected by scanning barcodes. But it could store only 20 characters. QR code is newly created with the idea of ​​barcode.

In 1994, Japanese engineer Masahiro Hara invented a scannable QR code filled with black and white pixels in 4 corner boxes. As a result, it is possible to store more information 10 times faster than previous barcodes.

What is QR code?
The full form of QR Code is Quick Response Code. This name is because information can be collected (data encoded) through QR code quickly. This code is a square box filled with black and white pixels, which can store about 7,000 characters or numbers. Scan the code to get all the information. QR codes are used to store various types of information.

Uses of QR Codes
From plane tickets to app downloads, QR codes are used these days. Among its various uses, this code is used to verify the information of a product, to connect to WiFi or to get someone's mobile number. For example, if a phone is advertised in the newspaper, a QR code is given next to it. By scanning the code, anyone can watch the ad video of that phone. It is then possible to promote the product in two ways simultaneously.

Account Information
No need to write account information on Facebook, Twitter and other social media. All information can be fetched in a QR code if desired. After scanning it, the person's account immediately appears. Messenger or WhatsApp these days have pre-generated profile QR codes.

Product Packaging
A product has many components, all of which may not be possible to write on the packet. Then by scanning the QR code on the product, all the information about that product is available.

Since it is possible to input personal information or password in the security QR code. So it is faster and safer to use QR code instead of entering password manually anywhere.

Is QR code safe?
No QR code can be hacked. However, hackers can generate code by linking to fake websites. From which location tracks or account information can be stolen. So according to experts, before scanning any QR code, verify its formula.