1. INDIRA GANDHI GOVT. ENGINEERING COLLEGE
SUBMITTED TO
MISS A.A.KHUJOOR
PRESENTED BY
PRANJAL SONI
0601IT131031
SEMINAR ON
BARCODE TECHNOLOGY

2. CONTENTS
 WHAT IS A BARCODE?
 HISTORY OF BARCODES
 TYPES
 HOW IT WORKS ????
 BARCODE SCANNERS
 APPLICATION OF BARCODE
 FACTS FOR SUCCESS
 ADVANTAGES
 DISADVANTAGES
 CONCLUSION

3. WHAT IS A BARCODE?
 IT IS AN AUTOMATIC IDENTIFICATION TECHNOLOGY
 STRUCTURED TO CONTAIN A SPECIFIC PIECE OF INFORMATION
 BARCODES IS A PREDEFINED FORMAT OF DARK BARS WITH WHITE
SPACES
 IN THE BARCODE SPACE IS CONSIDER AS ZERO AND BLACK BARS AS
ONE

4. HISTORY OF BARCODES
 AS FAR BACK AS THE 1960’S BARCODES WERE USED INDUSTRIAL WORK
ENVIRONMENTS
 IN EARLY 1970’S COMMON BARCODES STARTING APPEARING TO
AUTOMATE THE PROCESS OF IDENTIFY THE GROCERY ITEMS,UPC
BARCODES WERE PLACED ON PRODUCTS.
 SOME OF THE EARLY IMPLEMENTATIONS OF BARCODES INCLUDES THE
ABILITY TO IDENTIFY RAILS, CARS…ETC.
 THE TECHNOLOGY IS BORN ON 26TH OF JUNE 1974 THE WRIGELY JUICY
FRUIT GUM OF 10 PACKS WAS FIRST SCANNED PRODUCT.

5. TYPES OF BARCODE
 LINEAR BARCODE(CONSIST OF BLACK BARS AND WHITE SPACES)
CODE11 CODE128 CODE39 UPC etc.
 2D BARCODE(COMPOSED OF GRID OF LIGHT AND DARK MODULES)
DATA MATRIX AZTEC CODE QR-CODE etc.

6. HOW IT WORKS?
 EACH BARCODE LABLE HAVE A FEW DIFFERENT PARTS:-
MANUFACTURER’S ID
PRODUCT ITEM NUMBER
CHECK DIGIT
 THE FIRST FIVE NUMBERS SEEN ON THE LABELS REPRESENTS THE
MANUFACTURER’S ID
 THE NEXT SET OF FIVE NUMBERS IS THE PRODUCT ITEM NUMBER

7.  EACH PRODUCT HAVE A UNIQUE PRODUCT ITEM NUMBER
 CHECK DIGIT IS THE FINAL NUMBER ON THE BARCODE LABLE WHEN
SCANNER READS THE BARCODE THE DIGIT HELPS IT TO VERIFY THAT THE
BARCODE HAS BEEN READ CORRECTLY
 THIS IS ALL DONE BY SACNNER
 WHICH PICK UPS THE BARS THEN IT TRANSFERS THE INFORMATION TO THE
COMPUTER
 THEN IT FINDS THE RECORD ASSOCIATED WITH IT

8. CALCULATION OF CHECK DIGIT

9. BARCODE SCANNER
 THESE ARE AN ELECTRONIC DEVICE TO TO READING PRINTED BARCODES.
 A BARCODE SCANNER USES A PHOTO SENSOR(OPTICAL TECHNIQUE) TO
CONVERT THE BARCODE INTO AN ELECTRICASIGNAL.
 TYPES:-
 PEN STYLE SCANNERS
 SLOT BASED SCANNERS
 CCD READERS(CHARGE COUPLED DEVICE)
 CAMERA BASED SCANNERS
 LEASER BASED SCANNERS

10. APPLICATION OF BARCODES
 FOR DEPARTMENTAL STORES
 FOR LIBRARIES
 FOR INDUSTRY
 HEALTH AGENCIES
 DOCUMENT TRACKING

11. FACTS FOR SUCCESS
 BARCODE LABLES ARE CHEAP
 IT MAY BE READ BY GREAT ACCURACY
 STANDARD SIMBOLOGY IS DEVELOPED
 USER FRIENDLY TECHNOLOGY

12. ADVANTAGES
 REPRESENT UNIQUE IDENTITY OF A PRODUCT
 COST EFFICENT ACCURACY OF DATA INPUT (ERROR FREE)
 REAL TIME DATA COLLECTION
 BIDIRECTIONAL SIMBOLOGY

13. DISADVANTAGES
 SYSTEM FAILURE MAY COST MORE DELAY.
 SCRATCHED OR CRUMPLED BARCODES AY CAUSE PROBLEMS.
 DATA MUST BE CODED INTO THE BARCOD.
 IN LASER SCANNING DURABILITY & COST ARE TWO DISADVANTAGE.

14. CONCLUSION
 POSITIVE IMPACT ON DAILY LIFE.
 HAVE LOSTS OF ADVANTAGES WITH MINOR BOTTELNEAKS.
 IT HAS IT’S VESATILE USE & IT IS USER FRIENDLY.
 LASER EMISSION ON HUMAN BODY IS HARMFUL FOR SKIN.

15. ANY QUESTION ??????

16. THANK YOU!!!