[1] Reliability, Availability, and Serviceability / Reliable, Available And Serviceable

[2] File Name Extension für Sun-Rasterformat-Bitmaps (unüblich)

[3] Reactor Analysis and Safety (->"IEEE Standard Dictionary")

[4] Royal Astronomy Society (->"Penguin Dictionary of Astronomy")

[5] Random Access Storage

[6] Reader Admission System (UK)

[7] Russian Academy of Sciences (http://www.ras.ru/)

[8] Remote Access Service

[9] Rasht, Iran - internationale Fughafen-Kennung

[10] Remote Access Server.