Mainframe: The term was used to refer to the cabinet that held the physically large CPU of the old day computer. The term is now used to refer to a large, multi-purpose computer system and all the associated expertise that goes with it.

• 大型电脑:英文原意本来是指早期电脑摆放体积庞大的中央处理器的架.；现在则指一部多功能和专门的大型电脑系统