Amazon Elastic Compute Cloud (EC2) brings scalable computing power to the masses allowing users to launch and terminate server instances on demand, hence the term "elastic". Image File history File links Amazon_Web_Services_logo. ... In telecommunications and software engineering, scalability indicates the capability of a system to increase performance under an increased load when resources (typically hardware) are added. ...
EC2 uses XenVirtualization. Each virtual machine is the "equivalent of a system with a 1.7Ghz x86 processor, 1.75GB of RAM, 160GB of local disk, and 250Mb/s of network bandwidth" [1] and costs $.10 per hour plus bandwidth fees. Xen is a free virtual machine monitor for IA-32, x86-64, IA-64 and PowerPC architectures. ... In computing, virtualization is a broad term that refers to the abstraction of computer resources. ...