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).
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.
ADVANTAGES OF BARCODE TECHNOLOGY:-
⦁ Barcode is used to represent unique identity of the
⦁ 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 must be encoded in barcode.
⦁ scratched or crumpled barcodes may cause
problems while fetching data .
⦁ system and scanner failure may cost more delay in
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
⦁ Travels:Making ticketing more
efﬁcient,ensuring safety and faster check in.
⦁ Hospitals:To access patient data,medical
⦁ Library:Logging borrowers and books.
⦁ Post ofﬁce:To create database like back
number,item packed,quantity packed and ﬁnal