Cloud computing

is an old type of system that continues to be used even though newer technologies or more efficient methods of performing a task become available.

refers to the hands$-$on development, use, and control of computer$-$based information systems by users

is a modularized system that integrates all aspects of an or$-$ganization$$s activities$$such as accounting, finance, marketing, human resources, manufactur$-$ing, inventory management.

is a model enabling on$-$demand network access to shared computing resources that can be rapidly provisioned and released with minimal management effort or service provider interaction