portable operating system interface for unix
portable operating system for unix
portable operating system interface
portable operating system
monitoring systems for operating temperature
operating system for preventing electric mal-operation
OSDS Operating System for Distributed Switching
OSI Operating System Interface
operating system interface
GSM(Global System for Mobile) portable communication
NTOPS New Technology for Office and Portable Systems
portable operating table
standards for portable fire extinguishers
table for portable aspirator
128-bit operating systems
16-bit operating system
32-bit operating systems
64-Bit Operating Systems