Using a computer requires you to use a keyboard, and as commonplace as these things may be, the use of computer keyboards actually brings with it some risks. Included in such risks are repetitive stress injury and carpal tunnel syndrome. These are brought about by the act of keeping your arms in an unnatural position for a long period of time, as with the position your hands are in when typing on a keyboard and when your hand is holding a mouse for hours on end.
To remedy these particular ailments, and to prevent these from happening, ergonomic keyboards and other tools that are used with these can help. There are a number of computer keyboards that are considered ergonomic because of their shape and how these are made. These keyboards come with the same key positioning (QWERTY), but are shaped in such a way that your hands are placed in a natural position, which is in alignment with your elbows.
Also part of the list of items that can help prevent and alleviate the aches and pains associated with carpal tunnel syndrome and RSI, is the keyboard tray. Keyboard trays and keyboard platforms allow you to use your computer keyboards at a level that is both comfortable and ergonomically correct. These will also help users to avoid the problems brought about by hours of computer use, which can cause various wrist and hand injuries associated with staying in one position for extended periods of time and wrong hand and arm positioning.