The bus organization has several attractive features:
• Simplicity: This is the simplest approach to multiprocessor organization. The
physical interface and the addressing, arbitration, and time-sharing logic of
each processor remain the same as in a single-processor system.
• Flexibility: It is generally easy to expand the system by attaching more processors to the bus.
• Reliability: The bus is essentially a passive medium, and the failure of any
attached device should not cause failure of the whole system.
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