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The third-generation computers began to appear in 1965. These computers could do a million calculations a second, which is 1000 times as many as first-generation computers; they are controlled by tiny integrated circuits and are consequently smaller and more dependable. Fourth-generation computers have now arrived. They are based on ICs greatly reduced in size due to microminiaturization, which means that the circuits are much smaller than before. As many as 1000 tiny circuits now fit onto a single chip. Fourth-generation computers are 50 times faster than third-generation computers.
The most recent mainframe computers based on very large scale integration are becoming available in the mid-1980’s.
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Fourth-generation computers are 50 times faster than _______________________.
second-generation computers
first-generation computers
modern computers
third-generation computers