Today there is no way to do without barcodes. They are just strips with various information on them. Detect such information with special equipment - a scanner. There are many retail facilities equipped with them. With the help of barcodes you can find necessary information much faster. When you manually enter the information it takes too long. In this case errors cannot be ruled out.
Process of reading data
First take the required item. After that, scan the position for a couple of seconds.

You will see on the scanner screen:
- Product name;
- Price;
- Possible discount offers.

After that the data processing will be done. The information received will be sent to the cash register terminal.
Views of barcode scanners
1. By the method of operation:
- Manual - widespread device. Connects via USB. The scanner is easy to operate and small enough to be quickly and easily handled. Virtually all handheld bar scanners have an extra stand. Manual scanners are mostly used by small stores and companies dealing with large parcels. Very often the manual scanners are used by logistics companies for scanning parcels and various retail outlets.
Stationary scanner is a non-perishable equipment that reads barcodes. In order to interact with it you need to bring it close to the object. This machine has a high productivity. This is due to the high speed of activity. It is often installed in large stores with a large number of goods https://teklynx.com
- Built-in bar code scanner is used in the cashier's shops. No wires are needed for its operation. This scanner is very convenient, does not take a lot of space and has high productivity.
2. Based on the scanning method
- LED - reads the index by the red beam Information first hits the light, is reflected, then downloaded into the system The only negative of this scanner is that the code will not be read if more than 10cm away from the scanner itself. The LED scanner can read only one-dimensional numbers because it was created a long time ago The LED scanner reads only one-dimensional codes, since it was created a long time ago.

The advantages of LED bar scanners:
a) low cost;
b) long life;
c) good barcode reading ability.

- The principle of laser barcode scanners is exactly the same. But the beam is illuminated by laser. The model is more modern, so it's improved.
Benefits:
a) accessible even for distorted and small images;
b) scans any code format;
c) large distance of use;
d) very fast;
e) can work on an inclined plane;
f) can be mounted on optional stand

Disadvantages of the barcode scanner:
1) Does not read when the machine is in motion;
2) Doesn't recognize too smooth and shiny surfaces;
3) Prices high.

3. Photoscanners - new-type equipment. Principle of operation is that the program takes a picture and recognizes a barcode. The action is very fast for a few seconds. Supports all existing encodings. Reads data from a distance instead of close range. Can scan codes directly from phone or tablet screen even at an angle. It has a robust frame. There are no disadvantages, only a high price in the market.
4. Based on the authorization method
- Wireless - connection by cable: standard USB or other types;
- Wireless - another name for radio scanner. Interaction is established through the Internet and other additional programs

5. Based on barcode type
- Linear - single-beam scanner Linear - has only one beam It is used in small shops
- Two-dimensional - with many infrared beams.

In order to select the right barcode scanner you should know and take into account what it will be used for. For example, for trade with excise stamps (alcohol and tobacco products), the model of apparatus with photo system is suitable. Shops with high sales turnover and customers should not save on such equipment. While such equipment greatly speeds up and optimizes the work of the company as a whole.