The use of the computer becomes a difficult exercise for those people who cannot correctly visualize the letters of the keyboard, are incapable to control the movement of the mouse accurately or to follow the leader in the screen.

At present, many companies, as much at national level as international, decide to bet by the improvement of the peripheral ones towards an adaptation that allows to the people majors and to the employees a correct use of its functions. To a certain extent, one is to adapt the needs of these groups so that they can use the computer of easy form, besides avoiding ailments derived from the use of the mouse, the keyboard and the exhibition to the screen of the computer.

Accessible keyboards
The adapted keyboards count on keys of great size, perfectly visible and identified by colors, a perceptive technique to remember the position of each key. A good example of accessibility in keyboards is the model BlueStork BS-KB. This one account with 63 keys instead of the 103 conventional ones; it distinguishes vowels, consonants and signs of score by colors; he is resistant to the water and other fluids, and owns a great resistance to blows and accidental falls.

All these characteristics are common to the accessible keyboards, although other models choose to create graphical direct access with symbols: calculator, access to Internet, access to the electronic mail, etc.

In order to avoid the fatigue in the wrists and, sometimes, the numbness of the arms, pads especially designed exist in the market to place them in the part inferior of the keyboard. Usually they are made with soft and adaptable materials like silicone. Of this form, the wrists do not undergo the weight of support during the time that is used the computer.

The invisible mouse
For the people with high degree of dependancy or incapacitated to use a mouse by diverse reasons, a set of applications and devices able exist at present to turn the eyes into the mouse of the computer.

Iriscom, the most novel application in this field, is a system of communication and access through computer controlled by the movement of the eyes, especially designed for people with incapacity motorboat. For it, a system of pursuit of the movement based on the videoculografía is used. This equipment replaces the mouse in the applications for the operating systems Windows.

Its outpost technology allows the user to simply place the leader of the mouse in any place of the screen of the computer watching that point. The pulsation of the bellboys of the mouse is realized blinking slowly or maintaining the leader in the place wished during a predetermined time. In combination with a keyboard in screen text or voice allows the user to communicate by.

Software is designed to execute itself in background while the user uses any other application of Windows. It is used to write, to sail by Internet, electronic mail, design attended by computer, games and other many applications.

It is not necessary to have computer science knowledge to use the system and to communicate, since the programs that are used for the communication are very simple and intuitive to use. Naturally, if it is wanted to use some other application, like navigation by Internet, it is necessary to learn to use the navigator, which is quite simple.

Static mice
The mouse is a key element for navigation in Internet and, generally, for the use of the computer. The cursor faithfully represents the movements of the mouse, but this aspect can be counter-productive for those people who have problems of precision in the movements manuals. Own applications in the operating systems exist that allow “to slow down� the movement of the cursor, but this simply reduces the problem.

The accessible mice allow the movement of the cursor through a sphere without having to move the mouse, for that reason it lacks importance that are connected to the computer by means of a cable. Its ergonomic form allows that skilful and left-handed people use, although exist specific models for each option that improve the position of the hand so that it rests and it adjusts as if outside a glove.

In this type of mouse, the fingers are used to move the cursor and to press the bellboys, the arm remains static and in rest to avoid future ailments and numbnesses. In addition, its maintenance for an optimal operation only depends on the cleaning of the sphere. Thus, we will avoid to have abrir the device as it happens with the models that maintain the sphere in the interior.

The process of adaptation to this new way to use the mouse, mainly in customary people to the original handling, is not expensive and is very intuitive.