AWS -EC2

                                            Amazon EC2

• The Amazon EC2 simple web service interface allows you to obtain and configure capacity with minimal friction.
• Amazon EC2 works in conjunction with Amazon VPC to provide security and robust networking functionality.
• Connect your existing IT infrastructure to resources in your VPC using industry-standard encrypted IPsec virtual private network (VPN) connections.
• Dedicated Instances are Amazon EC2 instances that run on hardware dedicated to a single customer for additional isolation.
• Dedicated Hosts, which are physical servers with EC2 instance capacity fully dedicated to your use. Dedicated Hosts can help you address compliance requirements and reduce costs by allowing you to use your existing server-bound software licenses.
• You pay for the compute capacity you actually consume. 
• EC2 Instance Purchasing Options
• With On-Demand instances, you pay for compute capacity by the hour with no long-term commitments.
• Reserved Instances provide you with a significant discount (up to 75%) compared to On-Demand instance pricing.
• Spot Instances allow you to bid on spare Amazon EC2 computing capacity.