The most important part of the AWS platform is Amazon S3, a highly durable and easily scalable object storage service. Amazon S3 is designed to make web-scale computing easier for developers.
Amazon also provides IaaS (Infrastructure as a Service) through its Elastic Compute Cloud (EC2) service. With EC2, developers are able to rent virtual computers that configures with Amazon Linux or Windows Server.
VPC is a network of private, isolated networks within a public cloud. You get your own virtual private networking (VPN) connection from Amazon, and you can use it to access your VPCs from any Internet-connected device.