GSM Groupe Speciale Mobile
Widely used in Europe and Asia, communications network, the digital cellular (DIGITAL CELLULAR)-style communication technologies, one of the standards, through such a communication standard for remote laptops and personal digital assistants and other mobile devices to be connected with each other and exchange message.
GSM-R railway radio communication network
GSM-R (GSM Railway) GSM-R railway communications system approved by the European Union of Railways and adoption of a standard platform system, which is the world's currently the only access to commercial operation of the railway communication systems. The design architecture is based on GSM technology and equipment for high-speed rail travel rates of up to 300 kilometers per hour above derivative designed for the special communications needs.
At present the main railway staff, including the control center, maintenance center, Factory bases, train personnel and provide voice and data communications, providing required during normal operation of the train's emergency communications, messaging and other functions.
GUI Graphical User Interface (Graphics User Interface)
Into a GUI is a graphical-based user interface, use a single graphics and operating methods, such as movable windows, options, and the mouse cursor as the user and the translation between the operating system.
GUI of the most important advantage is to not use the command line user input commands to the operating system, not only can adjust the dialog box size, but also change the style and size. In addition, properly designed graphic images can help users quickly understand and searching capabilities, and through a unified mode of operation to allow users to learn how to use one, you can quickly familiar with the operation of other programs.
GUI has become a standard user and computer interaction, is the most major computer systems and programs used by the interface, including the Microsoft Windows systems, Macintosh, Unix's Motif, and the Linux desktop program GNOME, KDE.
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