System Center Configuration Manager (officially called ConfigMgr 2012 or ConfigMgr 2007 or simply ConfigMgr), formerly Systems Management Server (SMS), is a systems-management software product developed by Microsoft for managing large groups of computers running Windows, Windows Embedded, Mac OS X, Linux or UNIX, as well as various mobile operating systems such as Windows Phone, Symbian, iOS and Android.Configuration Manager provides remote control, patch management, software distribution, operating system deployment, network access protection and hardware and software inventory.SMS went through three major iterations: The 1.x versions of the product defined the scope of control of the management server (the site) in terms of the NT domain being managed.