Distributed Computing
- 1. Distributed Computing BY : Megha Yadav
- 2. Distributed Computing • It is a system with multiple components located on different machines that communicate and coordinate actions in order to appear as a single coherent system to the end-user. • It is a field of computer science that studies distributed systems. • A distributed system is a system whose components are located on different networked computers, which communicate and coordinate their actions by passing messages to one another.
- 3. What is the difference between distributed system and distributed computing? • Distributed system: a collection of independent computers that are connected with an interconnection network. • Distributed computing: a method of computer processing in which different parts of a computer program are run on two or more computers that are communicating with each other over a network.
- 4. Functions of Distributed Computing • Resource sharing -hardware, software or data can be shared. • Fault tolerance - failures in parts of the system be detected and recovered. • Concurrency - multiple machines can process the same function at the same time. • Scalability - computing and processing capabilities multiply when extended to many machines. • Transparency - access does one node have to locate and communicate with other nodes in the system.
- 5. Examples of Distributed Computing • 1: Telecommunication networks: Telephone network and cellular network • 2: Network Applications: World Wide Web Distributed Database and and Distributed Database Management system • 3: Real-Time Process Control: aircraft control systems Industrial control System • 4: Parallel Computation: Scientific Computing , including Cluster, grid and cloud computing .
- 6. Advantages of Distributed Computing • Reliability, high fault tolerance: A system crash on one server does not affect other servers. • Scalability: In distributed computing systems you can add more machines as needed. • Flexibility: It makes it easy to install, implement and debug new services. • Fast calculation speed: A distributed computer system can have the computing power of multiple computers, making it faster than other systems. • Openness: Since it is an open system, it can be accessed both locally and remotely. • High performance: Compared to centralized computer network clusters, it can provide higher performance and better cost performance.
- 7. Disadvantages of Distributed Systems • Difficult troubleshooting: Troubleshooting and diagnostics are more difficult due to distribution across multiple servers. • Less software support: Less software support is a major drawback of distributed computer systems. • High network infrastructure costs: Network basic setup issues, including transmission, high load, and loss of information. • Security issues: The characteristics of open systems make data security and sharing risks in distributed computer systems.