Subject :- Data Structures

Topic :- Fundamentals of Distributed Computing

Difficulty :- Medium

Loosely coupled system.

It is a concept of system design and computing where loosely coupled system is one in which every individual component has no knowledge of the definitions of other components.

In a loosely coupled system, hardware and software may interact but they are not dependent on each other.

1. It uses distributed memory concept. High space in this architecture

2. Contention is low in loosely coupled

3. It has high scalability

4. Data rate in loosely coupled system is low

5. Cost of loosely coupled system is low

6. It has static interconnection network

7. It operates on Multiple Operating System

8. In loosely coupled system, each process have its own cache memory

9. Throughput is low in loosely coupled

10. Security is low in loosely coupled

11. Power consumption is higher than tightly coupled system

12. Reusable in the case of flexibility

Tightly coupled system.

It is a concept of system design and computing where every hardware and software components that are linked together in such manner that each component is dependent upon each other.

Tightly coupled architecture promotes interdependent applications and code.

Tightly coupled architecture is fragile as the minor issue in one segment can bring the whole system down.

1. It uses shared memory concept. Hence Low space in this architecture

2. Contention is high in tightly coupled

3. It has low scalability

4. Data rate in tightly coupled system is high

5. Cost of tightly coupled system is high

6. It has dynamic interconnection network

7. It operates on Single Operating System

8. In tightly coupled system cache memory assign according to the need of processing

9. Throughput is high in tightly coupled

10. Security is high in tightly coupled

11. Power consumption is lower than loosely coupled system

12. Not reusable in the case of flexibility