Barcodes hold data that can be decoded by barcode readers. There are different types of barcode readers including pen-based and laser-based readers. Barcodes come in various formats, including linear barcodes like UPC codes and 2D barcodes like QR codes. Barcodes are widely used in retail stores, manufacturing, libraries, and offices to identify products efficiently with benefits like reduced costs and errors compared to manual identification. However, there are also some challenges like upfront costs and issues with damaged labels.

1. A PRESENTATION BY Suryadip Basu
• Dept.:- C.S.E.
• Sem. :- 4th
• Roll No. :- 204.
BARCODE& BARCODEREADER

2. INTRODUCTION
 WHAT 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 <<<

3. BARCODE SCANNING & DECODING
 ROTATING PRISM ANALYZES
THE REFLECTED LIGHT.
 GENERATES WAVEFORM.
 FINALLY, DECODES THE WAVEFORM.

4. BARCODE READER
 Ty 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.

5. TYPES OF BARCODE1.) LINEAR BARCODES :-
 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 BARCODES :-
 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.

6. APPLICATIONS OF BARCODE
 Retail Shops, Super Markets Etc.
 Manufacturing Factories.
 Libraries
 Offices
 Printed Circuit Boards (PCB).
&
Many More…

7.  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

8. 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.