SPM
[1] Session Protocol Machine (ISO/OSI-Schicht 5)[2] SONET Physical Layer Mapping (for FDDI)
[3] Sequential Processing Machine (->""IEEE" Standard Dictionary")
[4] Software Project Management (->""IEEE" Standard Dictionary")
[5] Source Program Maintenance (->""IEEE" Standard Dictionary")
[6] Solar Proton Monitor (->"Lexikon der Text- und Datenkommunikation")
[7] System Performance Monitor ( "IBM")
[8] Sample Plasma Monitor (Teil von ROMAP) \{Astronomie\}
[9] Spangdahlem, Germany - internationale Fughafen-Kennung