Thursday, April 03, 2014

Codabar Barcode. Advantages, Limitations and Applications


read the first part here

Advantages



Codabar made with ByteScout Barcode SDK
·   Can be printed on simple dot-matrix printer.
·      Codabar is an extremely barcode standard. It can be encoded and decoded by all types of printers ranging from simpler to complex ones.
·      Simplest barcode standard, not much user training is required to understanding the encoding and decoding techniques.

Limitations

·      Can encode only numeric digits from 0-9 and small set of characters and alphabets.
·      It has very small fault tolerance for damages and distortion. It is not easy to recover data even if small portion of these barcodes is damaged.
·      If large amount of data has to be stored, like other linear barcode types, its length has to be increased.

Applications

·      Extensively used in medical and surgical equipment owing to simple encoding and decoding technique.
·      Used in shipping industry to recognize the parcels and shipments.
·      Used in educational institutes and academic organizations.
·      Codabar is used by several courier services in order to store information of the sender, receive and the item itself. To read codabar from scanned documents or photos you can use BarCode Reader SDK as on of the wide-used barcode software.  



Tuesday, April 01, 2014

Funny Facts about BarCodes


Today is the most suitable day to remember some interesting stories about barcodes.

Funny Fact 1: In Seattle, QR codes are inscribed on graves which contain link to the detailed information about the deceased person

Funny Fact  2: The first patent for bar code was issued to inventors Joseph Woodland and Bernard Silver on October 7 of 1952.

Funny Fact 3: Wrigley's Gum was the first product to have a barcode included in June of 1974, at a Marsh's supermarket in Troy, Ohio. There was installed the 1st UPC scanner too. 

Funny Fact 4. Some religions believe that the global use of barcodes is an indication that we are living in the 'last days', as they all contain the number 666 in them (either the number set or the control sum).

EAN8 barcode
Funny Fact 5. Maths and barcodes are together. Check any product with the EAN8 barcode, doesn't the retailer make a mistake in it?

The check digit is chosen (we are checking EAN8 barcodes now) so that



3 x (1st + 3rd + 5th+ 7th number) + (2nd + 4th + 6th + 8th number)


is exactly divisble by 10.

Right barcode? Congratulations! Both you and the retailer are very good in maths!

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