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.
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