The Cloud

Cloud computing: The concept and technological approach of accessing data, using applications, storing files, etc. from anywhere in the world as long as you have an internet connection

Virtualization: A single physical machine called a host runs many individual virtual instances called guests

• It allows the concept of a physical machine and ​a logical machine to be abstracted away from each other.

Hypervisor: A piece of software that runs and manages virtual machines while also offering guests a virtual operating platform that’s indistinguishable from actual hardware

Infrastructure as a Service (IaaS): A subset of cloud computing where a network and servers are provided for customers to run their services

Platform as a service: A subset of cloud computing where a platform is provided for customers to run their services

Software as a Service (SaaS): A way of licensing the use of software to others while keeping that software centrally hosted and managed

Private cloud: When a company owns the services and the rest of the cloud infrastructure, whether on-site or in a remote data center

Public cloud: The cloud services provided by a third party

Hybrid cloud: A cloud computing environment that combines on-premises private cloud resources with public cloud resources