• Containers are standard environments / boxes in which components are run.
  • Components are software units that run within containers.
  • Containers standardize many features of enterprise applications.
  • Eg. Servlet Container gives servlets (components):
    • Standard system for handling and http requests and responses.
      • doGet, doPost, HttpRequest, HttpResponse
    • Standard system for accessing server resources
  • Portable
    • Components can easily be taken from one container and dropped into a container on another platform with different hardware without requiring code changes.
    • Eg. Whole web applications can be run in different web containers without any changes.
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