A PRESENTATION BY Suryadip Basu

•Dept.:- C.S.E.

• Sem. :- 4th

•Roll No. :- 204.

BARCODE & BARCODE READER

INTRODUCTIONWHAT IS a BARCODE ?

In 1932 by Norman Joseph Woodland, Harvard University, London.

Modern day barcode was invented in, 1948.

This Barcoding system was opened for public use from, 1967.

>>> ACTUALLY, BARCODES HOLDS SOME DATA <<<

BARCODE SCANNING & DECODING

ROTATING PRISM ANALYZES THE REFLECTED LIGHT.

GENERATES WAVEFORM.

FINALLY, DECODES THE WAVEFORM.

BARCODE READER T y p e s o f B a r c o d e R e a d e r : -

PEN BASED LASER BASED OMNI-

DIRECTIONAL A HIGH INTENSITY LASER LIGHT IS SENT.

IT, ANALYZES THE INTENSITY OF LIGHT WHICH IS REFLECTED BACK.

DECODED THE CODE BY A PROCESSOR.

TYPES OF BARCODE1 . ) L I N E A R BA R C O D E S : - U.P.C. (A & E) => Universal Product Code. E.A.N. (8 & 13) => European Article Numbering. CODE (39 & 128) => Same As Previous.2 . ) 2 - D BA R C O D E S : - P.D.F. – 417 => Portable Data File @2725 Characters. AZTEC CODE => High Density @3750 Bytes. DATA MATRIX => High Density @3116 Bytes. QR-BARCODE => Most Popular & Same As Previous.

APPLICATIONS OF BARCODE Retail Shops, Super Markets Etc.

Manufacturing Factories.

Libraries

Offices

Printed Circuit Boards (PCB).

&

Many More…

Fast, Efficient & Less Costly

10,000 Times Better Accuracy

Reduced Labor Costs & Data Collection Errors

Unique Identification To Each & Every Product.

Pricing Issues

Damaged Labels

Upfront Cost

Printer Requirements

CONCLUSION

Positive Impact On Daily Life.

Have Lots Of Advantages With Minor Bottlenecks.

It Has Its Versatile Uses & It’s User Friendly.

Laser Emission Near Or On Human Body Is Very Harmful.