December 2008
Intermediate to advanced
912 pages
33h 22m
English
Content preview from CJKV Information Processing, 2nd Edition
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Keyboard Arrays
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325
only 32% in the case of the QWERTY keyboard array. See Figure 5-3 for an illustration of
the Dvorak keyboard array.
The Dvorak keyboard arrayFigure 5-3.
To date, the Dvorak keyboard array has not succeeded in replacing the QWERTY array.
is only goes to show that eciency does not always make an item more appealing.
Ideograph Keyboard Arrays
e rst Japanese keyboards that were able to accommodate the Japanese writing system
were called kanji tablets. ese were huge keyboards that contained thousands of indi-
vidual keys.
e standard designated JIS X 6003-1989, Keyboard Layout for Japanese Text Processing
( nihongo bunsho shori-yō mojiban hairetsu), denes a
keyboard array that contains a total of 2,160 individual keys.
*
e kanji tablet shown in
Figure 5-4 is 60 keys wide by 36 keys deep (it is also available in another orientation with
fewer keys). e 780 most frequently used kanji are in Level 1, 1,080 additional kanji are
in Level 2, and 300 non-kanji are in the remaining keys.
Some Japanese corporations have even dened their own kanji tablet layouts, but this
type of Japanese input device is quickly becoming obsolete. Japanese input methods have
developed to the point where much smaller keyboard arrays, such as those already dis-
cussed, ...
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