The fourth generation of computers is more difficult to define than the other three generations.

第四代计算机比其他三代更难以定义。

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Modern microcomputers have more power than the large computers of earlier generations.

现代的微机比早期的大型机的能力还要强。

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Titan is designed to deliver a peak capability of over 27, 000 trillion calculations per second, or 27 petaflops, a system that is over ten times more powerful than previous generations of ORNL computers.

ENGADGET: Titan supercomputer to be loaded with 'world's fastest' storage system

In the next few months there will be interesting advances in interfaces and software APIs that will enable newer generations of high performance computers.

FORBES: A New Age of Digital Storage Interfaces

And as the computers were generations out of date, proper financial controls were difficult.

ECONOMIST: Zambia