LINES OF INFORMATION

 THE INFORMATION OF EACH AND EVERY OBJECT IS IMPORTANT.EACH AND EVERY OBJECT HAVE HISTORY AND INTERESTING NEWS.BUT DAY TO DAY LIFE WE USE SOME PRODUCTS LIKE BREAD TO EAT AND PEN TO WRITE ETC.....THE INFORMATION ABOUT THE THINGS  CAN'T BE EASILY TO HANDLE IN ,BOOKS ,COMPUTERS ,LAPTOP ETC IT TAKE A LOT TIME TO SEARCH ABOUT IT .BUT , TODAY IT IS MORE EASY TO SCAN THE OBJECT S' INFORMATION WITH THE HELP OF BAR CODE.... 

 BAR CODE

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A BARCODE OR BAR CODE IS WAY OF REPRESENTED DATA IN A VISUAL, MACHINE-READABLE FROM. INITIALLY, BAR CODE REPRESENTED DATA BY VARYING THE  WIDTHS AND SPACINGS OF PARALLEL LINES. THESE BAR CODE REFERRED TO THE ONE DIMENSIONAL [1D] , CAN BE SCANNED BY SPECIAL OPTICAL SCANNERS, CALLED BAR CODE READER. LATER , TWO- DIMENSIONAL[2D] VARIANTS WERE DEVELOPED,USING RECTANGLES DOTS,HEXAGONS AND OTHER GEOMETRIC PATTERNS, CALLED  MATRIX  CODES OR 2D BAR-CODES2D BAR CODE CAN READ OR DECONSTRUCTED USING THE   APPLICATION SOFTWARE IN MOBILE DEVICES, SCANNING BY MOBILE CAMERA.

THE BAR CODE WAS DISCOVERED BY NORMAN JOSEPH WOODLAND AND BERNARD SILVER IN TH US AT THE YEAR OF 1951, THE INVENTION IS BASED ON THE MORSE CODE THAT WAS EXTENDED TO THIN AND THICK BARS. HOW EVER ,IT  THE INVENTION TAKES 20 YEARS TO BE SUCCESSFUL. BUT IN 1960, ONE TYPE OF BAR CODE HAVE USED IN AN INDUSTRIAL CONTEXT WAS SPONSORED BY THE ASSOCIATION OF AMERICAN RAILROADS . IT HELPED IN THE DEVELOPMENT OF GENERAL TELEPHONE AND ELECTRONICS [GTE] AND IT IS CALLED AS KARTRRAK ACI [ AUTOMATIC CAR IDENTIFICATION ] THIS SCHEME INVOLVED PLACING COLORED STRIPES IN VARIOUS COMBINATIONS ON STEEL PLATES WHICH WERE AFFIXED TO THE SIDES OF THE RAILROADS ROLLING STOCK. 

                                                            ONLY TWO PLATES WERE USED PER CAR, ONE ON EACH SIDE, WITH THE ARRANGEMENT OF THE COLORED STRIPES ENCODING INFORMATION  SUCH AS OWNERSHIP,TYPE OF EQUIPMENT , AND IDENTIFICATION NUMBER. THE PLATES WERE READ BY A TRACKSIDE SCANNER , LOCATED FOR INSTANCE, AT THE ENTRANCE TO CLASSIFICATION YARD , WHILE THE CAR MOVING PAST.   THE PROJECT WAS ABANDONED AFTER ABOUT TEN YEARS BECAUSE THE SYSTEM PROVED UNRELIABLE AFTER LONG TERM USE.

                                              

                                           BARCODE BECAME VERY SUCCESSFUL IN SUPER MARKETS TO CHECK THE PRODUCT EASILY. THE UNIFORM GROCERY PRODUCT CODE COUNCIL HAD CHOSEN, IN 1973, THE BARCODE DESIGN DEVELOPED BY GEORGE LAURER .LAURER'S BARCODE WERE PRINTED BETTER THAT THE CIRCULAR CODES DEVELOPED BY WOODLAND AND SILVER.

                                                        THEIR USE HAS SPREAD TO MANY OTHER TASKS THAT ARE GENERICALLY REFEREED TO AS AIDC. THE FIRST SCANNING OF UNNIVERSAL PRODUCT CODE WAS BY WRIGLEY COMPANY CHEWING GUM WERE PRINTED ON THERE PRODUCT IN JUNE 1974 AT A MARSH SUPERMARKET IN TROY OHIO. QR CODE , A SPECIFIC TYPE OF 2D BARCODE HAVE RECENTLY BECOME VERY POPULAR.

THANKS FOR READING..........😎😎