AWS (Amazon Web Services) is a comprehensive cloud computing platform offered by Amazon, providing a wide range of on-demand computing services including computing power, storage, and databases. AWS offers flexible pricing models, scalability, and a broad array of services such as Amazon EC2 for virtual servers, Amazon S3 for storage, and Amazon RDS for managed databases. It is widely used for hosting applications, data storage, content delivery, and computing power, serving a broad spectrum of businesses across different industries.