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GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS Definition We define GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS - A 2G digital standard for cellular phone communications that is used in many countries. GSM communications bands range from 900-1800MHz. The GSM initials were initially derived from the French "Groupe de travail Sp‚ciale pour les services Mobiles." Globally Unique Identifier (GUID) - A unique 128-bit value generated by some Microsoft applications. An example of the GUID format is: 12345678-1234-1234-1234-123456789ABC. The GUID will use the MAC address of your network card as part of itself if you do have a network card installed, potentially marking documents created by Microsoft applications with a number that could be traced back to your PC. # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z