What is barcode?

Question

What is barcode?

Answer 1

A barcode (also bar code) is a machine-readable representation of information (usually dark ink on a light background to create high and low reflectance which is converted to 1s and 0s).

for more info:

http://searchcio.techtarget.com/sDefinit...

http://en.wikipedia.org/wiki/Barcode

Answer 2

A barcode (also bar code) is a machine-readable representation of information (usually dark ink on a light background to create high and low reflectance which is converted to 1s and 0s). Originally, barcodes stored data in the widths and spacings of printed parallel lines, but today they also come in patterns of dots, concentric circles, and text codes hidden within images. Barcodes can be read by optical scanners called barcode readers or scanned from an image by special software. Barcodes are widely used to implement Auto ID Data Capture (AIDC) systems that improve the speed and accuracy of computer data entry. An advantage over other methods of AIDC is that it is less expensive to implement. It will cost about US$0.005 to implement a barcode compared to passive RFID which still costs about US$0.07 to US$0.30 per ta

Answer 3

In simple common man,s language " a bar code is a machine readable code in the form of a pattern of parallel lanes of varying widths, printed on and identifying a commodity for stock control ".

If you need even further knowledge about bar coding techniques, then please visit related web sites, or search in Google.

Good luck.