What is cloud computing?

Introduction

Cloud computing revolutionizes how we access and manage technology resources. Whether you're streaming a video, storing photos, or running complex applications, cloud computing makes these services available seamlessly over the internet.

What is Cloud Computing

Cloud computing is the delivery of various computing services—such as servers, storage, databases, networking, software, and more—over the internet (“the cloud”). Instead of owning and maintaining physical data centers and servers, individuals and businesses can rent these resources from cloud service providers like Amazon Web Services (AWS), Microsoft Azure, or Google Cloud Platform (GCP).

Key Features

On-Demand Self-Service

Users can access and manage computing resources as needed without requiring human interaction with the service provider.

Broad Network Access

Services are available over the network and can be accessed through various devices, including smartphones, tablets, and laptops.

Resource Pooling

Cloud providers pool their resources to serve multiple customers using a multi-tenant model, with different physical and virtual resources dynamically assigned according to demand.

Rapid Elasticity

Resources can be quickly scaled up or down to match the current demand, providing flexibility and efficiency.

Measured Service

Cloud systems automatically control and optimize resource use by leveraging a metering capability, allowing users to pay only for what they consume.

Types of Cloud Services

Infrastructure as a Service (IaaS)

Provides virtualized computing resources over the internet. Examples include virtual machines and storage.

Platform as a Service (PaaS)

Offers a platform allowing customers to develop, run, and manage applications without dealing with the underlying infrastructure.

Software as a Service (SaaS)

Delivers software applications over the internet, typically on a subscription basis. Examples include email services like Gmail and business applications like Salesforce.

Deployment Models

Public Cloud

Services are delivered over the public internet and shared across multiple organizations.