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The CKC Chinese Input System is a Chinese input method for computers that uses the four corner method to encode characters.
The encoding uses a maximum of 4 digits ("0" - "9") to represent a Chinese character. All possible shapes of strokes that forms any given Chinese character are classified into 10 groups, each represented by one of the ten possible digits 0-9. Chinese characters can then be input by following the order in which the strokes are identified at the 4 corners of the character. As a result of this simplicity in coding using the ten numeric digits, users typically need to use only a numeric keypad to input Chinese.
Implementations for both Traditional and Simplified Chinese are available, though the coding principle applies to both. In other words, users only need to be trained once and the skill can be applied equally well to both Traditional and Simplified Chinese version of the CKC Chinese Input System.
Training courses on the CKC Chinese Input System are provided by training centres in CKC Centre for the Development of Information Technology for Chinese Language Teaching [1] of The Hong Kong Institute of Education, [2] IVE Haking Wong [3] [4] and of Hong Kong University. [5]
The mapping between groups of stokes and their corresponding digits 0-9 can be described by the following:
This means: 1 represents a horizontal stroke, 2 a vertical or diagonal stroke, 3 a dot or left-to-right diagonal stroke, 4 two strokes in a cross shape, 5 three or more strokes in which one stroke intersects all others, 6 a box-shape, 7 where a stroke turns a corner, 8 the shape of the Chinese character 八 and its inverted form, 9 the shape of the Chinese character 小 and its inverted form, and 0 a right-to-left diagonal or left hook stroke. [6]
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The software can be downloaded from The CKC Chinese Input System web site and can be run on the Microsoft Windows environment. Other platforms such as Linux, Palm and Pocket PC are under development.
It is also possible to use the CKC Chinese Input System without installing it on a PC. The WebCKC allows any PC connected to Internet using the MS Internet Explorer to input Chinese Characters using the CKC Chinese Input System.
You can try out the traditional Chinese version or the Simplified Chinese version . Note that you need to use keyboard with numeric keypad in order to input Chinese with this method.
Text entered are stored in the clipboard and therefore ready to be pasted to any desired application.
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