The speed of a computer is usually expressed in cycles per second. Typical machines operate at 100 to 200 megahertz or 100 million to 200 million cycles per second.

• 计算机的速度通常用每秒（执行）的（时钟）周期来表示。典型的机器运转在100到200兆赫或者说每秒100到200兆周期。