portable operating system interface for unix
unix operating system unix
portable operating system
portable operating system interface
portable operating system interface for computing systems
operating system for preventing electric mal-operation
OSDS Operating System for Distributed Switching
GSM(Global System for Mobile) portable communication
portable operating table
standards for portable fire extinguishers
table for portable aspirator
16-bit operating system
alarm for operating condition
Android operating system
applicable operating system
application for operating license