2. Key Points
• Introduction
• History
• Working
• Types Of Barcode Reader
• Applications
• Advantages
• Disadvantage
• Reference
3. Introduction
A barcode is a Machine-Readable representation of data relating
to the object to which it is attached.
Originally barcodes systematically represented data by varying
the widths and spacing's of parallel lines.
One-dimensional (1D). Later two-dimensional (2D) codes.
Combined with data-collection technology, bar codes provide a
rapid, accurate, and efficient.
4. History
In 1948 Bernard Silver, a graduate student at Drexel Institute of
Technology in Philadelphia, Pennsylvania.
Their first working system used ultraviolet ink, but the ink faded too
easily and was rather expensive.
Woodland left Drexel, moved into his father's apartment in Florida, and
continued working on the system.
Inspiration came from Morse code.
On 20 October 1949 Woodland and Silver filed a patent.
The patent was issued on 7 October 1952.
5. Working
All Barcodes look similar at least when viewed from distance.
95 numbers are grouped in 15 different sections.
Okay now we have got the numbers, what do they actually mean?
The very first number
The First next 5 sets of numbers
The Second next 5 sets of numbers
Finally the final digit
10. Advantages
Barcode provide more accurate and rapid speed.
It is time saving and store more information about product.
It is easy to handling.
It reduces the man power and saves time.
It reduces the human errors and human efforts.
Accuracy of data input.
Real time data collection.
11. Disadvantages
System Failure may cost more delays.
Scratched or crumpled barcodes may cause problems
Data must be coded in the barcode
In laser scanning, durability and cost are the two disadvantages
12. Some More Applications
Barcode is machine readable image so it store more data about product information.
Provide the information of retail package, delivery warehousing and distribution of
product.
It used at Shopping Mall bills, Book stalls.
It used at food product and Electronic good purchasing.
For Laboratories.
For Libraries.
For Industry.
13. Reference
Automating Management Information Systems: Barcode Engineering
and Implementation – Harry E. Burke, Thomson Learning.
Automating Management Information Systems: Principles of Barcode
Applications – Harry E. Burke, Thomson Learning.
The Bar Code Book – Roger C. Palmer, Helmers Publishing.
The Bar Code Manual – Eugene F. Brighan, Thompson Learning
