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Computer keyboard tray, does it helps to prevent strain problem on your hands? First of all, let me tell you what is computer tray before you decide to get one.
When we talk about keyboard layout, we will think about QWERTY keyboard layout which was invented by Christopher Sholes 1868. Why, because we are trained to use QWERTY keyboards without any questionings. About 15 years ago, I still remembered that I had to paid for attending typing classes to learn how to use QWERTY keyboard without asking why each key has be to arranged in this specific layout.
Right now, with more and more PDA cellular phones with QWERTY keyboards released into the market, it is the right time to justify whether we should stat with QWERTY keyboard forever as typing on the small keyboard on a PDA Phone doesn’t really work well because of limited space. Read “Computer Keyboard Revolution”
Oneday, we all can free our fringers from typing on QWERTY keyboard as we can use our Brain to type in the future. The video shown below is a “serious research” that shows two guys type WITHOUT keyboard. There isn’t any much word and information about the research, however, from the video, we can see that this technology will be available pretty soon.