Non-PRO English to Russian Tech/Engineering Computers: Systems, Networks

Cloud computing evolved from a concept called virtualization. Virtualization is the process of creating a virtual version of an OS, a server, or network resources. Using virtualization, you can host multiple Operating Systems at the same time on a single machine.
A traditional application server may have just 5-10% utilization, whereas virtualized servers can reach 50-80% utilization. By hosting more virtualized instances on fewer physical servers, you can lower costs for hardware acquisition, maintenance, energy and cooling system usage.