The Kinds of Barcode Reader

Jenis-jenis Barcode Reader.


Barcode is essentially the order of the vertical black and white with a different thickness, is very simple but very useful, with the functionality to store data-specific data, for example, the production code, expiration date, the identity number, the easier and cheaper, although the technology is now growing found with magnetic media, RFID, electronic tags, serial eeprom (as in the smart card), continue to survive and barcode have certain advantages, namely the excess is the most cheap and easy, because the media used was paper and ink, and to read the barcode there are so many options in the shop with prices ranging from relatively inexpensive form of a pen (Wand), slots, scanner, up to the CCD.

The types of barcode are:

1. Code 39 / 3 of 9



Content can code 39 characters alphanumeric decimal digits and the uppercase characters and extra special -. * $ /% +. One character in Code 39 consists of 9 elements of the 5 bars (vertical black lines) and 4 spaces (white vertical line) which is arranged alternately between the bars and spaces. 3 of 9 elements have a thickness thicker than the other so this code can be also called code 3 of 9, 3 elements of a thick consist of 2 bars and 1 space. Elements that represent the wide binary digits 1 and the narrow elements represent binary digit 0.

2. Extended Code 39



Extended Code 39 is the development of Code 39 that all Content able ASCII characters with a pair coding with Code 39.
3. Interleaved 2 of 5 (ITF)




ITF barcode Content can only be numbers only and are often used on products that have packaging with a surface that is not flat, this is caused and how to structure a unique ITF. Each character on the ITF barcode is coded with 5 elements, namely elements 2 and 3 thick narrow elements, where elements of binary digits represent the thick and 1 thin represent element binary digit 0 with the comparison of thickness between the elements with thick thin elements with 3:1 to 2:1.

4. Code 128



Code 128 covers the entire 128 ASCII character is coded for. The difference with the barcode Code 128 is the line spacing and wide with 4 different methods while the other generally use lines and spaces with a width of 2 different.
5. UPC-A




UPC (Universal Product Code)-A consists of a 1-digit number at the beginning of the barcode system, 5-digit manufacturer number, 5 digit number and the product as a 1-digit check digit.
6. UPC-E




UPC-E is used on goods that is packed with a packer or pack size is very small. UPC-E UPC symbol depicts the overall-A, UPC-A only consists of a certain number of zero which can be summarized into UPC-E symbol.
7. EAN-13




EAN (European article numbering) -13 sejnis with the UPC-A, the difference lies in the code number system. In the UPC number system digit is coded with 1 course from 0 to 9, while in the EAN-13 consists of 2 digits from 00 to 99 who the usual country code.

8. EAN-8



EAN-8 is a shorten version of the version of EAN-13 code. EAN-8 consist up 2 or 3 digit country code, 4 or 5 digits of data and a check digit.