From the perspective of technical principles, the touch screen is a transparent absolute positioning system. First of all, it must be transparent. Therefore, it must solve the problem of transparency through material technology. Like digitizers, writing boards, elevator switches. They are not touch screens.
Secondly, it is absolute coordinates, wherever the finger touches, no second action is required. Unlike a mouse, it is a relative positioning system. We can notice that touch screen software does not require light. , The cursor affects the user’s attention. Because the cursor is used for relatively positioned devices. To move a relatively positioned device to a place, you must first know where you are and in which direction to go. It is also necessary to constantly feedback the current position to the user at all times so that there will be no deviation. These are not required for touch screens that adopt absolute coordinate positioning.
Secondly, it can detect the touch action of the finger and determine the position of the finger. Various touch screen technologies work around "detecting finger touch".
With the increase of multimedia information query equipment, people talk about touch screens more and more, because touch screens are not only suitable for China's multimedia information query national conditions, but also touch screens have many advantages such as sturdiness, fast response, space saving, and easy communication. Using this technology, the user can operate the host by gently touching the icon or text on the computer display with his finger, thereby making the human-computer interaction more straightforward. This technology greatly facilitates those who do not understand computer operations. user.
The application range of touch screens in our country is very broad, mainly for public information inquiry; such as business inquiry of telecommunication bureau, tax bureau, bank, electric power and other departments; Electronic games, ordering songs and dishes, multimedia teaching, real estate pre-sales, etc. In the future, touch screens will also enter the home.
With the increasing use of computers as information sources. The touch screen has the advantages of being easy to use, sturdy and durable, fast response, and saving space. More and more system designers feel that the use of touch screens does have considerable advantages. It has only been a few years since touch screens appeared on the Chinese market. This new multimedia device has not been touched and understood by many people. Including some system designers who are planning to use touch screens. They also treat the touch screen as a dispensable device. From the perspective of the popularization of touch screens in developed countries and the stage that my country's multimedia information industry is in. This concept also has a certain universality.
In fact, a touch screen is a device that reshapes multimedia information or controls. It gives a new look to the multimedia system. It is a very attractive new multimedia interactive device. The system designers in developed countries and the system designers in our country who are the first to use touch screens already know this clearly. The touch screen is no longer an indispensable thing for computers in various application fields, but an indispensable device. It greatly simplifies the use of computers, even for people who know nothing about computers. It can still come easily. Make the computer show more charm. It solves the problems that cannot be solved by computers in the public information market.
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