Barcode is collection of lines representing information about the product on which it is attached. The barcode contains optical machine readable data. The information or data is in the different width, spacing of the lines. Originally, the barcodes were in lines and were linear. Later one dimensional and two dimensional codes were developed. These codes were in rectangles, dots, hexagons and geometry patterns. All the codes can be read only with the barcode reading devices. Now, the software to read the barcodes also comes in Smartphones.
Types of bar codes –
Barcodes can be divided into numeric only, alpha numeric only or 2 dimensional codes. Code 39 can be of any length and has large number of characters enclosed in it. This bar code has upper case letters , digits and some special characters space , minus , period , dolor sign , percentage , plus and slash . This code 39 can be extended by encoding several other characters like lowercase letters and additional symbols. The code 39 (HIBC) is alphanumeric symbol, which is has character + plus sign as start character for each symbol.
Code bar contains digits from 0 to 9 and six characters such as plus, dolor sign, slash sign, and start / stop characters like AB C and D. Post Net –this is only numeric code and contains digits from 0 to 9. It can be printed as five digit code or 9 digit codes.
UPC codes come in two versions of UPC –A and UPC – E .The first version has to contain 12 digits and this is fixed length code. The UPC – E is also fixed length numeric only symboling code. In this code all symbol must begin with zero. Interleaved 2 – 5 is numeric barcode and contains only even number of digits.
EAN -8 is also Barcode scanner dealer in Delhi fixed length numeric only symbol code and is called the compressed version of UPA –C. In this barcode 6 digits are contained and all symbols must begin with zero.
EAN -13 contains 13 digits in place of 12 digits. It is also fixed length numeric only symbol code .similarly, there is Book land and MSI / plessy codes fixed number of digits
Use of barcodes –
Barcodes help to maintain the record of goods during transportation and shipping. It saves lot of time to sort out the items and categorized them according to different yardsticks. They also ensure the quality of the Wireless barcode scanner suppliers in Delhi products maintained by the manufacturer.
Dash International 