1)TSOS Time Sharing Operating System,时间分享操作系统，分时操作系统2)SOS (share operating system),分时操作系统，共享操作系统3)time sharing operating system,分时操作系统4)operating system time-sharing,操作系统分时5)TOPS Time C Sharing Operating System,时间共享的操作系统6)TSO Time Sharing Operation,时间分享操作，分时操作