BARCODE
TECHNOLOGY

WHAT IS BARCODE?
⦁ First,concept of Barcode was developed by Bernard silver in 1948.
⦁ George J.laurer is considered the inverter of UPC,which is the most
acceptable form of Barcode.
⦁ It is also known as "universal product code"(UPC).

A barcode symbol consists of five parts:

TYPES OF BARCODE VERSION:-
UPC(Universal Product Code):-
UPC version A
UPC version E
UPC version B
UPC version C
UPC version D
EAN(European Article Number):-
EAN -8 Version
EAN -13 Version

BARCODE REPRESENTATION :
It can be represented in two forms :-
1) 1D or linear barcode representation
Ex: all versions of UPC and EAN
2) 2D or matrix barcode representation
EX: QR code,Maxicode

1) 1D or linear barcode representation
UPC-A BARCODE
SYMBOL
EAN-13 BARCODE
SYMBOL

2D or matrix barcode representation
It is similar to linear(1-dimensional) barcode but has more data
representation capability.
QR CODE MAXICODE

WORKING OF BARCODE:-

1)Laser beam is incident on a mirror/prism which
is then directed on the barcode from left to right.
2)The dark bars of barcode absorb the incident
light but light is reflected by white spaces.
3)photodiode measure the reflected light and
gives out electric signal.The analog electrical
signal is then converted into digital one and
corresponding data can be read.

IMAGE OF BARCODE SCANNER :-
HAND-HELD SINGLE LINE
SCANNER
FIXED BEAM SLOT
SCANNER

ADVANTAGES OF BARCODE TECHNOLOGY:-
⦁ Barcode is used to represent unique identity of the
product.
⦁ Accuracy of data input(Error free).
⦁ More accurate dispatch.
⦁ Labour saving by avoiding manual input system.
⦁ Using barcode is cost efficient.
⦁ Real time data collection.

DISADVANTAGES OF BARCODE TECHNOLOGY:-
⦁ scanner system is required at each time to see the
data encoded.
⦁ Data must be encoded in barcode.
⦁ scratched or crumpled barcodes may cause
problems while fetching data .
⦁ system and scanner failure may cost more delay in
fetching data.

APPLICATION OF BARCODE TECHNOLOGY:-
⦁ Retails and stores: Helps in tracking of a large
number of items in stores.
⦁ Business process: Used in business
process,procedures are automated to increase
productivity and reduce human error.
⦁ Office: Used in office for recording
transactions.

⦁ Travels:Making ticketing more
efficient,ensuring safety and faster check in.
⦁ Hospitals:To access patient data,medical
history etc.
⦁ Library:Logging borrowers and books.
⦁ Post office:To create database like back
number,item packed,quantity packed and final
destination etc.

THANK YOU
BY JAIGANESH M