A—menu B—passwordC—account D—full screenE—update F—operation systemG—save as H—read only memoryI—code J—bufferingK—double click L—exitM—virus N—fileO—create a new folder P—clearQ—register R—page setupS—host T—imageExamples：(T)图像 (I)编码

填空题 ( )清除 ( )双击

填空题 ( )另存为 ( )缓冲

填空题 ( )全屏 ( )升级

填空题 ( )新建文件夹 ( )注册

填空题 ( )退出 ( )操作系统