Presentation on

BARCODE TECHNOLOGY

Presented by: Abdullah-al-mamumSakil Ahamad Yunus MiahMaruf Alom

What is Barcode?

Barcodes are simply a set of symbols used to represent alpha-numeric information instead of seeing a number“1”, or letter “A”, you would see a series of black and white bars in various combinations and in different widths.

These are used to encode data. The data encoded in such bars can be decoded again to represent it in human readable form.

Brief History

As far back as the 1960s, barcodes were used in industrial work environments. Some of the early implementations of barcodes included the ability identify rail road cars.

In the early 1970s, common barcodes started appearing on grocery shelves. To automate the process of identifying grocery items, UPC barcodes were placed on products.

Today, barcodes are just about everywhere and are used for identification in almost all types of business.

Why use Barcodes? When barcodes are used in the business process,

procedures are automated to increase productivity and reduce human error.

Whenever there is a need to accurately identify or track something, bar-coding should be used. For example, in a data entry work environment, workers may be required to enter an enormous amount of data into a customer database system.

Instead of manually typing a customer identification number into a database, if the information is contained in a barcode, a data entry operator may scan it in. This would increase automation and reduce human error.

Barcode types and use

The type of barcode to use for a particular situation depends upon:

1) The use.

2) The data encoded in the barcode.

3) How the barcode will be printed.

There are two types of barcodes:

Linear barcodes 2D barcodes.

Applications of Barcode

RETAIL APPLICATIONS− Super markets

− Counter-mounted Bar Code scanners

− Universal Product Code (UPC)

− Price and description information WARE HOUSING HEALTH CARE APPLICATIONS

− Drugs, devices, instruments

− Identification of expiry date

Evaluation of Barcode

One of the most common tools for reading barcodes is the hand held barcode scanner. All of the barcode scanners recommended and sold by ID Automation have built-in decoders that can read several different bar code types.

Most of the scanners sold by ID Automation receive their power from the PC keyboard or USB port so no external power supply is required. When a barcode is scanned, the data is sent to the PC as if it was typed using a keyboard.

1D Barcode

How 1D Barcode Works UPC Code: Universal Product

Code (UPC), which is used

on grocery items to encode

a 10 digit number.

What is 2D Barcode?

Advantage of 2D barcodes

2D Barcode

Laser scanner

CCD Printer

Camera based reader

Barcode Reader

Barcode Reader Cont.

Barcode Scanner

Single line Handheld Fixed mount, multi-line

Advantages

REPRESENT UNIQUE IDENTITY OF A PRODUCT

ACCURACY OF DATA INPUT (ERROR FREE)

LABOUR SAVINGS BY AVOIDING MANUAL SYSTEM

COST EFFICIENT REAL TIME DATA

COLLECTION RAPID ACCESS TO

TOTAL PRODUCTION COSTS

MORE ACCURATE DESPATCH

Disadvantages

System Failure may cost more delays Scratched or crumpled barcodes may cause

problems Data must be coded in the barcode In laser scanning, durability and cost are the two

disadvantages

Future of Barcode Technology

Age verification Opening customer accounts: Business Tracking Product Stock control Coupons Fraud detection

QR Code

QR codes are two-dimensional bar

codes that can contain any

alphanumeric text and often

feature URLs that direct users to

sites Product Stock control

QR Code Cont.

Benefits of QR

Code Limitation of QR

Code

How QR code works

QR Code just store the address Every Square have meaning in QR code

Conclusion

Barcodes are moving to new technology. That will expand the job market.