INDIRA GANDHI GOVT. ENGINEERING COLLEGE

SUBMITTED TO MISS A.A.KHUJOOR

PRESENTED BY PRANJAL SONI0601IT131031

SEMINAR ON BARCODE TECHNOLOGY

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

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

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.

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.

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

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

CALCULATION OF CHECK DIGIT

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

APPLICATION OF BARCODES

FOR DEPARTMENTAL STORES

FOR LIBRARIES

FOR INDUSTRY

HEALTH AGENCIES

DOCUMENT TRACKING

FACTS FOR SUCCESS

BARCODE LABLES ARE CHEAP

IT MAY BE READ BY GREAT ACCURACY

STANDARD SIMBOLOGY IS DEVELOPED

USER FRIENDLY TECHNOLOGY

ADVANTAGES

REPRESENT UNIQUE IDENTITY OF A PRODUCT

COST EFFICENT ACCURACY OF DATA INPUT (ERROR FREE)

REAL TIME DATA COLLECTION

BIDIRECTIONAL SIMBOLOGY

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.

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.

ANY QUESTION ??????

THANK YOU!!!