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雲端計算:核心概念

  • Cloud providers typically maintain multiple generations of IT resources, purchased over different time frames.
  • Cloud providers are increasingly applying virtualization technology on their clouds to consolidate servers, enhance system utilization, and simplify management. Public clouds are primarily virtualized data centers. Even on private clouds, virtualized environments are expected to become the norm.
  • Middleware: The part that can be incorporated in distributed programs to work out heterogeneity is commonly referred to as middleware.