3 Comments for i want some information about barcode technology?

• 1. Godsownman  |  November 18th, 2010 at 4:57 am

  You can read here for some more information

  en.wikipedia.org/wiki/Barcode

  Also do check howstuffworks.com

  Sorry, I cannot go in detail, but the how stuff works site will give you more than you want too.

  Thanks

• 2. Jat M  |  November 18th, 2010 at 5:14 am

  taltech.com/TALtech_web/resources/intro_to_bc/bcsymbol.htm

• 3. darenit  |  November 18th, 2010 at 5:46 am

  A linear bar code is a binary code (1s and 0s). The lines and spaces are of varying thicknesses and printed in different combinations. To be scanned, there must be accurate printing and adequate contrast between the bars and spaces. Scanners employ various technologies to “read” codes. The two most common are lasers and cameras. Scanners may be fixed position, like most supermarket checkout scanners, or hand-held devices, often used for the taking of inventories. There should be (but typically is not,) a distinction drawn between the code, which is a structure for the conveyance of data, and the symbol, the machine-readable representation of the code. The code is text, which can be translated into a multiplicity of languages – English, French, Japanese, symbol.

  Notwithstanding its inauspicious beginning, the bar code has become a remarkable success, a workhorse in many and varied applications. One of the first successful bar codes, Code 39 developed by Dr. David Allais, is widely used in logistical and defense applications. Code 39 is still in use today, although it is less sophisticated than some of the newer bar codes. Code 128 and Interleaved 2 of 5 are other codes that attained some success in niche markets.

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