Amazon Web Services (AWS) is a comprehensive cloud computing platform offered by Amazon. It provides a wide range of on-demand computing resources, including computing power, storage, and databases, accessible over the internet. AWS allows businesses to scale resources up or down based on demand, reducing infrastructure costs. Services like EC2 for virtual servers and S3 for scalable storage are key components. AWS offers global data centers, high availability, and security features, making it a popular choice for organizations seeking to leverage cloud technology.