Which architecture allows multiple processors to share memory and work simultaneously?          

MIMD (Multiple Instruction, Multiple Data) is an architecture where multiple processors can execute different instructions on different data simultaneously, sharing a common memory space. This allows for parallel processing, increasing the efficiency and speed of the system, making it ideal for complex computational tasks. SISD : Single Instruction, Single Data architecture processes one instruction at a time on one data set, without parallelism. SIMD : Single Instruction, Multiple Data architecture processes multiple data sets using the same instruction, but it is not as flexible as MIMD. MISD : Multiple Instruction, Single Data architecture is rarely used and is not suitable for parallel processing. SOA : Service-Oriented Architecture is unrelated to processor architecture and focuses on building modular services in software systems.