NLOS Natural Language Operating System
Nucleus operating system
Real-time Operating System Nucleus
natural language operating system
operating system language
The Real-time Operating System Nucleus
TRON The Real-time Operating-system Nucleus
16-bit operating system
Android operating system
applicable operating system
automatic operating system
B2 level secure operating system
Basic Disc Operating System
batch processing operating system
batch-processing operating system
BDOS Basic Disc Operating System
BOSS Basic Operating System Software