Bar code technology is the electronics and information areas of high-tech science, technology involved in a wider area, a number of technology is the result of combining. The automatic identification technology, bar-code technology has the following characteristics :
1. Simple. Bar code produced easy, simple scanning operation.
2. Information gathering speed. Ordinary computer keyboard input speed is 200 characters / minutes, and the use of barcode scanning and recording information keyboard input speed is 20 times.
4. High reliability. Keyboard Input data, the bit error rate of 1/300th, the use of optical character recognition technology, the bit error rate is about one ten thousandth, and the use of barcode scanning and recording, the only one millionth error rate, the first rate up to 98%.
5. A flexible and practical. Bar code symbols as a means of identification can be used alone, and can also identify the composition of equipment automation system identification, but also other control equipment and link the entire system of automated management. At the same time, automatic identification equipment, we can achieve manual keyboarding.
6. Freedom large. Identification devices and barcode labels relative position of much greater freedom than the OCR. Bar codes are usually only in one direction - dimensional information on the expression, and the same bar code on the message expressed by consecutive identical, even labeling some shortcomings, we can still imported from the normal part of the correct information.
7. Finally, and most important feature is that the bar code automatic identification system that involves the identifier costs and equipment costs are very low. In particular, bar code, even one-time use, and will also bring the number of additional costs, particularly in high-volume printing of context. This characteristic makes bar-code technology in certain application areas have incomparable advantages. Furthermore, the bar code reader equipment is simple, low cost, easy to apply to many areas, and work settings.