Cybil (short for the Cyber Implementation Language of the Control Data Network Operating System) is a Pascal-like programming language developed at Control Data Corporation for the Cyber computer family.Computing information directory by Darlene Myers Hildebrandt (1988) page 232 Cybil was used as the implementation language for the NOS/VE operating systemMuseum Waalsdorp - computer history, based on a CDC NOS/VE information leaflet on the CDC Cyber series and was also used to write the eOS operating system for the ETA10 supercomputer in the 1980s.
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