[1] Response Time Monitor
[2] Real-Time Monitor (->"IEEE Standard Dictionary")
[3] Register Transfer Module (->"IEEE Standard Dictionary")
[4] (USENET-Jargon) Read The Manual!
[5] (Borland) Runtime Manager
[6] Rundfunktechnische Mitteilungen (->"Lexikon der Text- und Datenkommunikation")
[7] Regional Telecommunications Management
[8] Raster Tunnel(ling) Microscope
[9] Rotterdam, Netherlands - internationale Fughafen-Kennung