Cloud Computing

Cloud computing is the on-demand delivery of IT services through the internet, replacing traditional reliance on physical data centers and servers. It allows businesses and individuals to access computing power, data storage, and applications without owning costly infrastructure. 

Major providers like Amazon Web Services (AWS), Microsoft Azure, and Google Cloud offer scalable platforms supporting software as a service (SaaS), platform as a service (PaaS), and infrastructure as a service (IaaS). This flexibility enables organizations to scale resources up or down, pay only for what they use, and improve disaster recovery and business continuity. 

Hybrid and multi-cloud models combine public and private clouds for optimized performance and security. Cloud computing supports modern workloads such as big data analytics, machine learning, and global collaboration, making it essential for startups and enterprises alike. Its benefits include faster innovation, cost efficiency, and access to advanced technologies without the burden of managing physical infrastructure.