関連ワード:  write the basic functions of an operating system    write the major functions of an operating system    write the four functions of an operating system    write basic functions of an operating system in detail    write the basic function of operating system software    write basic functions of operating system as memory management    write four main functions of an operating system    write the functions of an operating system    write down the key features of an operating system    write down the key features of an operating system class 5  
結果 : write the basic functions of an operating system