A Digital Media Controller (DMC) is a DLNA device, classed as a Home Network Device.
These devices search for content on other DLNA-Certified Digital Media Servers (DMS) and can feed it to Digital Media Renderers (DMR).
A Digital Media Controller can include a tablet PC, a Wi-Fi enabled digital camera or a PDA, for example.
Always check for the DLNA-certified logo on such a device.
Other types of DLNA devices include...
Home Network Devices
Digital Media Server (DMS)
Digital Media Player (DMP)
Digital Media Renderer (DMR)
Digital Media Printer (DMPr)
Mobile Handheld Devices
Mobile Digital Media Server (M-DMS)
Mobile Digital Media Player (M-DMP)
Mobile Digital Media Uploader (M-DMU)
Mobile Digital Media Downloader (M-DMD)
Mobile Digital Media Controller (M-DMC)
Home Infrastructure Devices
Mobile Network Connectivity Function (M-NCF)
Media Interoperability Unit (MIU)