Barcodes represent alphanumeric information as patterns of black and white bars of varying widths. They were first used industrially in the 1960s and began appearing on grocery products in the 1970s. Barcodes automate processes like data entry by allowing information to be scanned rather than manually typed. There are two main types: linear barcodes like the UPC code and 2D barcodes. Barcodes are now widely used across industries like retail, warehousing, and healthcare to identify and track items.

1. Presentation on
BARCODE TECHNOLOGY
Presented by:
Abdullah-al-mamum
Sakil Ahamad
Yunus Miah
Maruf Alom

2. What is Barcode?

Barcodes are simply a set of symbols used to
represent alpha-numeric information instead of
seeing a number“1”, or letter “A”, you would see a
series of black and white bars in various
combinations and in different widths.

These are used to encode data. The data encoded in
such bars can be decoded again to represent it in
human readable form.

3. Brief History

As far back as the 1960s, barcodes were used in
industrial work environments. Some of the early
implementations of barcodes included the ability
identify rail road cars.

In the early 1970s, common barcodes started
appearing on grocery shelves. To automate the
process of identifying grocery items, UPC barcodes
were placed on products.

Today, barcodes are just about everywhere and are
used for identification in almost all types of
business.

4. Why use Barcodes?

When barcodes are used in the business process,
procedures are automated to increase productivity
and reduce human error.

Whenever there is a need to accurately identify or
track something, bar-coding should be used. For
example, in a data entry work environment, workers
may be required to enter an enormous amount of
data into a customer database system.

Instead of manually typing a customer identification
number into a database, if the information is
contained in a barcode, a data entry operator may
scan it in. This would increase automation and

5. Barcode types and use

The type of barcode to use for a particular situation
depends upon:
1) The use.
2) The data encoded in the barcode.
3) How the barcode will be printed.

6. There are two types of barcodes:

Linear barcodes

2D barcodes.

7. Applications of Barcode

RETAIL APPLICATIONS
− Super markets
− Counter-mounted Bar Code scanners
− Universal Product Code (UPC)
− Price and description information

WARE HOUSING

HEALTH CARE APPLICATIONS
− Drugs, devices, instruments
− Identification of expiry date

8. Evaluation of Barcode

One of the most common tools for reading barcodes
is the hand held barcode scanner. All of the barcode
scanners recommended and sold by ID Automation
have built-in decoders that can read several different
bar code types.

Most of the scanners sold by ID Automation receive
their power from the PC keyboard or USB port so
no external power supply is required. When a
barcode is scanned, the data is sent to the PC as if it
was typed using a keyboard.

9. 1D Barcode

How 1D Barcode Works

UPC Code: Universal Product
Code (UPC), which is used
on grocery items to encode
a 10 digit number.

10.  What is 2D Barcode?
 Advantage of 2D barcodes
2D Barcode

11.  Laser scanner
 CCD Printer
 Camera based reader
Barcode Reader

12. Barcode Reader Cont.

13. Barcode Scanner
Single line Handheld Fixed mount, multi-line

14. Advantages

REPRESENT UNIQUE
IDENTITY OF A
PRODUCT

ACCURACY OF
DATA INPUT
(ERROR FREE)

LABOUR SAVINGS
BY AVOIDING
MANUAL SYSTEM

COST EFFICIENT

REAL TIME DATA
COLLECTION

RAPID ACCESS TO
TOTAL
PRODUCTION
COSTS

MORE ACCURATE
DESPATCH

15. 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

16. Future of Barcode Technology

Age verification

Opening customer accounts:

Business Tracking

Product Stock control

Coupons

Fraud detection

17. QR Code

QR codes are two-dimensional bar
codes that can contain any
alphanumeric text and often
feature URLs that direct users to
sites Product Stock control

18. QR Code Cont.

Benefits of QR
Code

Limitation of QR
Code

19. How QR code works
 QR Code just store the address
 Every Square have meaning in QR code

20. Conclusion
Barcodes are moving to new technology. That will
expand the job market.