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Human machine interface (HMI) touch screen panels limit and/or remove the need for pens, typing, and mouse click interaction with computers. These types of applications are making there way into individual, commercial and governmental operations on an increasing basis. At first the benefit of such computing may seem superficial or redundant, however it is clear the benefits of such computing are quite significant. HMI touch screen panels are currently used in a number of places including those provided below:

*Airport electronic ticket issuers
*Self Checkout counters
*Pin code payment pads
*Business computer applications
*Government recording and data management
*Interactive Educational tools

COST EFFECTIVENESS OF HMI TOUCH SCREEN PANELS:

Human machine interface touch screen panels can reduce the costs of product manufacturing and potentially increase profit margins by both improving brand and lowering production costs. For example, cell phones and DVD players use buttons and remote controls. Touch screens phones and remotes can eliminate the need for buttons, and expand the function of both the phone and the remote allowing it to incorporate new technological integrations without adding cost. A few of the cost related advantages of HMI touch screens are listed as follows:

*Space cost savings
*Eliminates the need for component parts such as buttons on cell phones
*Makes possible a greater range of computer functions thereby adding value
*Reduces the need for labor within various service industries

EFFICIENCY OF HMI TOUCH SCREENS:

Touch screens are also more efficient than traditional computer interactions. Moreover, at present there are more keyboard, pen activated or mouse click interactive computers than touch screen and/or 3D command screens. These additional tools can slow down a worker or computer users efficiency depending on the application being used. A few of the advantages to efficiency of HMI are outlined below.

*Allows other psychological functions to be freed for other tasks
*Touch screen based feedback may improve performance and productivity
*Quicker access to information

TECHNOLOGICAL ADVANTAGES OF HMI TOUCH SCREENS:

There are also several technological benefits to HMI touch screens. These devices are innovative and capable of higher capacity and more elaborate interactive functions. This not only expands the functionality of a computer and its software but also creates more room for technological innovation within the same computer space. Some technological benefits

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