Question

Discuss any four live examples where barcode readers are used .​

Answer 1

Answer:

What is a bar code??

A bar code is representation of black and white vertical lineds generally used to describe a product. There are slight changes in the numbers and alignment of lines used for representing each type of product and it is in a huge use today.

What is a bar code scanner:

A bar code is used to scan each and every bar code and then it acts like a input device to display the output on the screen which shows product description. Bar code scanners are however now being replaced by quick response codes.

Applications of bar code:

• Airports: Bar code scanners are used in airports to scan the bar codes in the boarding pass which it displays all details about the passenger and his flight details and many more.

• Food: Nowadays technology is getting so advanced that on scanning a food product we are able to see its calories, nutritional percent and many more which is a very good use

• Shops: It is used in shops for scanning and we can get product name and its cost on the screen, this is used even in local shops nowadayas for billing.

• Advertising: It is used for advertising purposes when we scan any bar code in a newspaper it takes us to the website of the advertising company.

Answer 2

Barcode:

Barcode is generally the representation of data, url, information, website, app, redirect details in the form of vertical black and white lines. Barcode is also called as "Global language of business". When the barcode is scanned, we are redirected to any particular domain or site. Barcodes can be created at our own with the help of various online tools for redirecting to a specific url or any particular location. Barcodes really saves our lot of time and they are helpful in many ways. Their is a particular link saved in a barcode in the form of parallel lines. When the barcode is scanned, the particular device is redirected to that domain.

Working of Barcode:

The working of the barcode is completely based on the wrapping and the distance between two parallel black lines. i.e. The distance between the lines is actually considered for scanning the bar codes. Many of us think that, The Black parallel lines or number below them is scanned. But actually, The distance and wrapping between the two lines is considered for barcode scanning and redirecting.

When the barcode from the any online tool is generated, then the link is hidden in the barcode in the form of vertical strips. Scanning this redirects the user to the link. But nowadays, This process has became a quiet complex. Because, today we are able to scan and pay, scan and register and many complex activities. This complex working of barcode is done with the various high level programming languages and tool.

Barcode scanner:

A barcode scanner is an application/app which is generally used to scan the given barcode. This apps redirect our device to the link hidden in the barcode. The barcode scanner applications do the use of complex algorithms and data structures to store our data, information and redirect us to the link.

There are different barcodes authorities and institutions for different countries. This authorities provides the barcodes to the barcodes generator and to barcode scanners. The authority "GS1-Global language of business" manages the barcode generators and scanners.

Applications of Barcode:

Shops: Barcodes are used in shops at very large scale. The amount of the purchased item can be easily paid with the help of barcode. This step is so easy that it just needs one scan and one verification. This saves our lot of time and it is very efficient way of paying.

Airport: At airports, the barcode is used for storing all the details about the boarding pass. All the details and information about the user is stored in the barcode. This barcodes reduces our time.

Books and E-learning: In today's books, At the front page, at the back page and at the end/start of the lesson, There are barcodes. This barcodes redirects us to E-platforms for learning in efficient way.

To know about: Nowadays, almost every product which we see around us have the barcode. Scanning this barcode gives us all minute details about the product. This is very helpful for people who want to know more about.

To subscribe/recharge: Various companies have prepared their barcodes. This barcodes are created by companies in such a way that, scanning the barcode will recharge the particular thing or service instantly by our verification. This is so time saving.