The difference between readers and bar code readers

Bar codes are everywhere and for the laity, are simply a set of parallel black lines found. But once deciphered or read by a barcode reader or scanner to find them, a lot of product information, which are to remain. Reading the barcode scanner or requiring readers.
Barcode Wands

The first uses chopsticks have been called a barcode. The bars have a small light emitting diode (LED) on the tip and a photo receptor. The receiver receives the reflected light fromThe code and the model of reflection signal shows the information of the bar code and content. The simple process requires some experience with the practice since the tube is always on and did not come release. Held like a pen, is the staff to be back and forth on the bar code to read it.

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CCD Barcode Scanner
However, rods, bar code scanners have been replaced by CCD (Charged Coupled Device). They are very useful and canoutperform rods that are obsolete and laser printers, which is twice as expensive, if not more. Cost of about a hundred dollars, are the most advanced CCD scanner wands, as they have different LED and receiver and then the entire stock code in a unique exhibition. This also makes them faster and more reliable with respect to information gathered.

Laser Barcode Scanner
These are some of the latest bar code scanner on the market today. Equipped with a laserDiode on the tip of the scanning head is used, the beam through a network of mirrors and lenses projected onto the barcode, and what appears is a string of lights or a single huge red light. When used on a tripod, the laser is automatically collected information from the first minute you know a barcode him. This helps to increase reading speed and keep the user's hands free. The second type is one with a trigger
that works more as a CCD scanner.

BarcodeImager
Technological progress, the use of an area or two-dimensional barcodes, which led to store 3000 bytes of information in bar code format regular stamp. However, it can not be read by conventional scanners and readers have a special need. These are called bar code imager and a bit 'similar to digital cameras. Actually analyze the image of bar codes, and decoding, and then transfer the data required for the host computer needsInformation.

Connecting computers and bar code scanner

Macintosh computers must be a single USB port can use the scanner. The same applies to all laptops that are not true about the advantage of the keyboard ports. For general users, bar code readers have therefore called on the PC using a keyboard wedge Y cable can be connected. It is shaped basically like the alphabet Y, and connect, your computer keyboard and scanner. The scanner scansPassing information to the computer and, if necessary, to reach the big screen by issuing instructions from the keyboard.

The difference between readers and bar code readers

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