条码卡

    条码是由一组宽度不同、平行相邻的条和空，按照一 定的编码规则组合成的符号，可代表字母、数字等信息，一般一条条码可容纳二十个以内字母、数字信息。在进行辨识的时候，是用条码阅读机扫描，得到一组反射光信号，此信号经光电转换後变为一组与线条、空白相对应的电子讯号，经解码後还原为相应的文数字，再传入电脑。条码卡是通过打印或者喷墨的方式将条码制作在卡片上,用以做相关信息的存储和识别。条码是将线条与空白按照一 定的编码规则组合起来的符号，用以代表一 定的字母、数字等资料。通用条码主要有13码、39码、128码等一维条码以及二维条码。这些卡被广泛应用于商场、超市、休闲娱乐、交通运输、医疗保健等行业。

     Bar code is composed of a set of different width of adjacent, parallel bars and empty, according to a certain coding rules into combinations of symbols can represent letters, numbers, and other information, a bar code can be accommodated within twenty letters, digital information. When identification, is the use of bar code reader scan, get a set of reflected light signal, the signal after the photoelectric conversion into a group and blank lines, corresponding to the electronic signal, after decoding to restore the corresponding digital, and then to a computer. Bar code card is by printing or inkjet way barcode maker on the card, stored and used to identify relevant information. Bar code is blank lines and according to a certain coding rules for combining symbols, used to represent certain letters, numbers and other information. General barcode has 13 main yards, 39 yards, 128 yards and other one-dimensional bar code and two-dimensional bar code. These cards are widely used in shopping malls, supermarkets, entertainment, transportation, health care and other industries.