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README.md

🧠 1.1 Cloud Computing and Virtualization

  • Virtualization is the core component of clouse operations
  • This allows a single physical server to divide into smaller seperate units
  • This lets you use divide the hardware resources to run seperate units with their own allocation of memory, storage and network access - as well as run different operating systems
  • The flexibility of virtualisations means its possible to provision and run for x amount of time and shut it down.
  • Resources can be released immediately, this enables you obtain maximum usage from hardware and generated sandboxed environments

🟥 Cloud Computing Architecture

  • AWS is a cloud provider which have Server Farms - thousands of servers and disk drives
  • Cloud computing offers on-demand, self-service to pooled resources where usage can be metered and billed according to how much resource is being consumed - this allows for very precise billing models💡

🟥 Cloud Computing Optimization

  • The three main features of cloud computing is:

    1. Scalability
    2. Elasticity
    3. Cost Management

  • SCALABILITY: scalable infrastrure is able to handle an increased demand of the application by automatically adding resources.

    • This is achieved in AWS by increasing number of virtual machines (or instances as said by AWS)

  • ELASTICITY: resources can be automatically deallocated when demand has decreased, this improves costs and efficiency of resources

  • COST MANAGEMENT: reduced upfront costs, small incremental expenditure reduces risk. New hardware requirements can be achieved in minutes.