Search the dictionary A Chinese word or character, or English Draw a character Search 4 entries. cāozuòxìtǒng 操作系统 operating system cāozuòxìtǒng 操作系統 operating system wǎngluòcāozuòxìtǒng 网络操作系统 network operating system wǎngluòcāozuòxìtǒng 網絡操作系統 network operating system