What is Cloud Computing?

Cloud Computing is the delivery of on-demand computing services—including servers, storage, databases, networking, software, and analytics—over the internet. Instead of buying and maintaining physical data centers and servers, organizations rent access to storage and computing power from cloud providers like AWS, Microsoft Azure, or Google Cloud.

How It Works

Cloud computing works by allowing client devices to access data and applications over the internet from remote physical servers, databases, and computers. A front end enables users to access data stored in the cloud using an internet browser or a software application. The back end consists of computers, servers, and data storage systems that store the information. A central server manages the system by using protocols to facilitate communication and exchange of data between the front and back ends.

Key Cloud Models

Infrastructure as a Service (IaaS)

IaaS offers fundamental computing, storage, and networking resources on demand, allowing businesses to rent servers and operating systems from a cloud provider without physical hardware investment.

Platform as a Service (PaaS)

PaaS provides a complete development and deployment environment in the cloud, with resources that enable developers to build, test, and deploy applications without managing underlying hardware or operating systems.

Software as a Service (SaaS)

SaaS delivers fully functional software applications over the internet on a subscription basis, managed entirely by the software provider, eliminating local installation and maintenance needs.

Benefits and Use Cases

• Reduces capital expenditures by eliminating the need to buy and maintain physical hardware
• Enables rapid scalability to handle fluctuating business workloads without delay
• Improves disaster recovery and business continuity through automated backups in distributed locations
• Enhances team collaboration by making applications and data accessible from any internet-connected location
• Accelerates software delivery through automated provisioning of developer environments