16-bit operating system
automatic operating system
batch-processing operating system
CCDOS ( Chinese character disc operating system )
client’s operating system
completely automatic operating system
embedded Linux operating system
嵌入式Linux操作系统
Linux嵌入式操作系统
嵌入式Linux系统
Embedded Operating System
embedded real-time operating system
embeded operating system
intensive operating system
microkernel operating system
multi-function operating system
multi-user operating system
network operating system