<div style="text-align:center;">Multiprocessors and Multiprocessing</div>

Multiprocessors and multiprocessing

Definition of multiprocessors

A single chip having two or more interconnected processors incorporated in it is called a multiprocesor.
For example:-
Dual core processors like
Quad core processors like
Octa core processors like
Hexa core processors like

Definition of multiprocessors system

A computer system having two or more interconnected CPUs with its memory and peripheral devices is called a multiprocessor system.
All the commercial PCs and smartphones are widely used multiprocessors system. For example:-

Definition of multiprocessing

The parallel programming technique of executing multiple instructions stream and multiple data stream concurrently in a environment of two or more processors controlled by one operating system is called multiprocessing.

Advantage of mutiprocessing:-

Multiprocessing improves the system performance.

How does multiprocessing improves the system performance?

Multiprocessing improves the system performance.

Classification of multiprocessors

On the basis of the organization of memory, multiprocessors are classified into tightly coupled multiprocesor and loosely coupled multiprocesor.

The multiprocesor system having a global common memory is called a shared memory multiprocesor or tightly coupled multiprocessor.

> The multiprocessor system not having a global common memory but each processor has their own local memory is called distributed-memory multiprocesor or loosely coupled multiprocesor.

The differences between tightly coupled multiprocessors and loosely coupled multiprocesors are as follows:-

Tightly coupled multiprocessors	Loosely coupled multiprocesors
It has a global common memory.	It has no global memory. Each processor has its own local memory.
Efficient when data dependency among task are very frequent.	Efficient when data dependency among task are rare.