1.2.1 DISTRIBUTED SYSTEMS In Cloud Computing
1.2.1 DISTRIBUTED SYSTEMS In Cloud Computing It is a collection of independent computer that appears to its users as a single coherent system. Distributed system are Dynamic Distributed systems are usually Overlay Network. Examples :- peer to peer, VoIP, Characteristics Of a Distributed system. 1.No shared clock :- order events-logical clock is achieved by synchronization. 2.No Shared Memory :- state is distributed throughout the system. 3.Concurrency:- tasks are executed concurrently. 4.Heterogeneity and Loose Coupling :- not required- different Oss and technologies EVOLUTION OF DISTRIBUTE SYSTEM TECHNOLOGIES 1950, 2010 There major milestones have led to cloud computing 1.Mainframes Computing :- These were the first examples of large computational facilities leveraging multiple processing units. Mainframes were powerful, highly reliable computers specialized for large data movement and massive input/ output operations. One of the most attractive features of mainframe...