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OCR: SMP OR SHARED MEMORY SYSTEM CONFIGURATION OPI CPU :CPL CPU System Interconnect Disk Figure 2. In a symmetric multiprocessing (SMP) configuration, there is a single instance of RAM and disk resources on the system-every resource is shared. A single executing copy of the operating system runs on mul- tiple processors, parceling successive threads or instructions to the next unoccupied processor. Application soft- ware is blind to the parallelism performed by the OS.