Computer Organization and Architecture. i need the answer in details and have example for each arguments. Please

a) What is the difference between loosely coupled and tightly coupled parallel processor architecture? (4 marks) b) Figure 2 illustrates the architecture of the Non-Uniform Memory Access (NUMA). Processor Processor 1 m | Cach Processor 2.1 Lt Cache Processor 2 m Cache L1 Cache L2 Cache Directory L2 Cache L2 Cache Directory Main Memory 1 Main Memory 2 Interconnect Network Processor N.1 1 Cache Processor Nm LE Cade 12 Core Code dory Main Memory Figure 2: Non-uniform Memory Access (NUMA) i) How many Symmetric Multiprocessors are presented in Figure 2 if Nis set to 7? (1 mark) ii) What kind of cluster characteristic is observed in Figure 2? (1 mark) iii) Discuss TWO (2) differences between the NUMA and the Symmetric Multiprocessor. (4 marks)