A computer usually consists of input central processing unit (CPU) and output.

一部电脑通常由输入，中央处理机和输出组成。

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All computer systems of interest to us are similar. They contain hardware components for input, central processing unit and output.

我们目前感兴趣的计算机系统都是相似的，它们的硬件设备均包含输入设备，中央处理器和输出设备。

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The NOR type needs to be ultrafast because it is directly connected to the central processing unit of a computer and stores its basic input-output system (the operating system used by the microchip that lies beneath user-interface operating systems, such as Windows).

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