OCR就是利用光学技术对文字和字符进行扫描识别，转化成计算机内码的技术。
OCR is carries on the scanning recognition using optics technology to the writing and the character, transforms technology which the computer encodes.
由于种种原因，在华人世界中使用了多种不同版本的汉字，各种版本汉字的计算机内码表示又存在多种标准。
Because of various reasons, several Chinese characters versions are used in Chinese world, and every version has several internal code standard.
通过键盘或其他输入设备向计算机输入汉字，计算机内部得到的是汉字的机内码。
Inputting the characters through keyboard or other equipments and obtaining the internal statement number.
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