Cloud computing is the practice of using remote servers hosted on the internet to store, manage, and process data, instead of relying on local servers or personal computers. It allows users to access and utilize computing resources such as storage, processing power, and software applications without the need for physical infrastructure. The key characteristic of cloud computing is that it offers on-demand access to computing resources through the internet, typically through a pay-per-use model.

Key Features of Cloud Computing:

• On-demand self-service: Users can provision and manage resources like storage, computing power, and applications as needed, without requiring human intervention from the service provider.
• Broad network access: Cloud services are available over the internet and can be accessed from a wide range of devices, such as laptops, smartphones, or tablets.
• Resource pooling: Cloud providers use multi-tenant models to pool computing resources for multiple users. These resources are dynamically assigned and reassigned based on demand.
• Elasticity: Cloud resources can scale up or down based on demand, allowing users to only pay for what they use.

Measured service: Cloud computing uses a metered billing system, meaning users are charged based on their usage of services (e.g., storage space, computing power).