Cloud Computing refers to the delivery of computing services over the internet, allowing users to access and store data on remote servers instead of local machines. This technology enables businesses and individuals to use resources like storage, processing power, and applications without the need for physical hardware. By leveraging virtualization and internet technologies, Cloud Computing offers flexibility, scalability, and cost-effectiveness. Users can easily scale their resources up or down based on demand, making it an attractive option for startups and large enterprises alike. Popular services include Amazon Web Services and Microsoft Azure.