System Center Configuration Manager (SCCM 2007 or ConfigMgr or Configuration), formerly known as Systems Management Server (SMS 2003), is a member of the Microsoft System Center suite of management products.
Configuration Manager provides patch management, software distribution, operating system deployment, network access protection, and hardware and software inventory.
Latest version of configuration manager - SCCM 2012, increases IT productivity and efficiency by reducing manual tasks and enabling you to focus on high-value projects, maximize hardware and software investments, and empower end-user productivity by providing the right software at the right time. System Center 2012 Configuration Manager helps you to provide more effective IT services by enabling secure and scalable software deployment, compliance settings management and comprehensive asset management of servers, desktops, laptops, and mobile devices. (Source: MS TechNet).
Following is the version history of Configuration Manager:
Source: Microsoft Wiki