【单选题】A digital computer is a system composed of four distinct elements: a central processing unit,input devices, memory storage devices, and_______devices.
【判断题】Contingency thinking is the ability to see both the distinct elements of a system or situation and the complex and changing interaction among those elements.
【单选题】A digital computer is generally made up of five distinct elements: a central processing unit, ____ devices, memory storage devices, _____ devices and a bus.