A unified computing system (UCS) is a data center model that builds by integrating computing, networking and storage resources to increase the overall efficiency. This architecture also enables centralized management. To put simply, UCS is a system of servers, storage, a network and a storage network that works on a single platform. Cisco designed the first UCS in April 2009, and after that many companies have developed UCS like Sun's Modular Datacenter, InteliCloud's 360, Hewlett-Packard’s Blade System Matrix, and Liquid Computing's LiquidIQ.
For a fully fledged data center, Cisco has claimed that its UCS will allow an 86 percent reduction in cabling, allowing the quick resource provisioning while reducing the capital expense by more than 40 percent. Unified computing system is not a new product, although it is a sophisticated collection of existing hardware and software. The system integrates a low latency, lose less 10 GE unified network, with enterprise-class X-86 architecture servers.