The portion of a computer or peripheral that houses the apparatus used to operate the machine manually and provides a means of communication between the computer operator and the central processing unit, often in the form of a keyboard.

• 操纵台计算机或外部设备的部分，容纳用来手动操作机器的装置以及为计算机操作者与中央器之间提供交流手段，常以键盘为表现形式