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Definition: MAS

(1) (Multiple Address System) A radio service in the 932-932.5 and 941-941.5 MHz frequency that covers a 25-mile radius from the antenna. It is used for sensor-based and transaction systems (ATMs, reservations, alarms, traffic control, etc.).

(2) (Multiple Award Schedule) A list of approved products available for purchase by U.S. government agencies.

(3) (Macintosh Application System) Software that allows a Mac 68K application to run in a PowerPC. It includes a 68K emulator and the Mac Toolbox, which contains the Mac's graphical functions. The Mac graphical user interface runs native in the PowerPC while only the Motorola 68K instructions are emulated.