why distributed system is needed in computer science.pptx

distributed systems

1. Introduction to Distributed Systems

2. Distributed Systems SNSCE/CSE/DISTRIBUTED SYSTEM/UNIT-1 2 /9 Why distributed systems? availability of powerful yet cheap microprocessors (PCs, workstations, PDAs, embedded systems, etc.) continuing advances in communication technology What is a distributed system? A distributed system is a collection of independent computers that appear to the users of the system as a single coherent system.

3. SNSCE/CSE/DISTRIBUTED SYSTEM/UNIT-1 3 /9

4. T ypes SNSCE/CSE/DISTRIBUTED SYSTEM/UNIT-1 4 /9

5. Distributed system Architecture SNSCE/CSE/DISTRIBUTED SYSTEM/UNIT-1 5 /9

6. Goals of distributed systems: SNSCE/CSE/DISTRIBUTED SYSTEM/UNIT-1 6 /9 Resource Sharing Transparency Openness Scalability

7. SNSCE/CSE/DISTRIBUTED SYSTEM/UNIT-1 7 /9

8. Characteristics of Distributed System SNSCE/CSE/DISTRIBUTED SYSTEM/UNIT-1 8 /9 Concurrency Lack of global clock Independent failure of components

9. Example SNSCE/CSE/DISTRIBUTED SYSTEM/UNIT-1 9 /9 Telecommunication networks: telephone networks and cellular networks computer networks such as the Internet Network applications: World Wide Web and peer-to-peer networks massively multiplayer online games and virtual reality communities Real-time process control: aircraft control systems industrial control systems