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Today, the computer has taken up appliance status in more than 42 percent of households ac

ross the United States. And these computers are increasingly being wired to the Internet. Online access was up more than 50 percent in just the past year. Now, more than one quarter of all U.S. households can surf in cyberspace.

Mostly, this explosive growth has occurred democratically. The online penetration and computer ownership increases extend across all the demographic levels-by race, geography, income, and education.

We view these trends as favorable without the slightest question because we clearly see computer technology as empowering. In fact, personal growth and a prosperous U.S. economy are considered to be the long-range rewards of individual and collective technological power.

Now for the not-so-good news. The government's analysis spells out so-called digital divide. That is, the digital explosion is not booming at the same pace for everyone. Yes, it is true that we are all plugged in to a much greater degree than any of us have been in the past. But some of us are more plugged in than others and are getting plugged in far more rapidly. And this gap is widening even as the pace of the information age accelerates through society.

Computer ownership and Internet access are highly classified along lines of wealth, race, education, and geography. The data indicates that computer ownership and online access are growing more rapidly among the most prosperous and well educated: essentially, wealthy white people with high school and college diplomas and who are part of stable, two-parent households.

The highest income bracket households, those earning more than $75,000 annually, are 20 times as likely to have access to the Internet as households at the lowest income levels, under $10, 000 annually. The computer penetration rate at the high-income level is an amazing 76.56 percent, compared with 8 percent at the bottom end of the scale.

Technology access differs widely by educational level. College graduates are 16 times as likely to be Internet surfers at home as are those with only elementary-school education. If you look at the differences between these groups in rural areas, the gap widens to a twenty-six-fold advantage for the college-educated.

From the time of the last study, the information access gap grew by 29 percent between the highest and lowest income groups, and by 25 percent between the highest and lowest education levels.

In the long run, participation in the information age may not be a zero sum game, where if some groups win, others must lose. Eventually, as the technology matures we are likely to see penetration levels approach all groups equally. This was true for telephone access and television ownership, but eventually can be cold comfort in an era when tomorrow is rapidly different from today and unrecognizable compared with yesterday.

How many U. S. households have linked to Internet today?

A.More than 25 percent.

B.By 29 percent.

C.More than 42 percent.

D.More than 50 percent.

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第1题
With the introduction of the computer, libraries today are quite different from ______they
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A.that

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第2题
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第3题
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第4题
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第5题
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第6题
The underlined word "hacker" (Para. 1) most probably means ______.A.highly recognisable na

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第7题
The Aristotle example is used to make the point that______A.universities in the UK have pr

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第8题
The computer is a wonderful machine. It is the most important invention since the type of
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The oldest kind of computer is the abacus, used in China since the sixth century. In the seventeenth century an adding machine was invented, but the first large, modern computer was built in 1973. A few years later a computer could do 5,000 additions per second. Now the computations are so fast that they are measured in nanoseconds.

Today most computers are stored-program computers, that is, they have a memory. They are getting smaller and smaller, and computing faster and faster. Even in a large computer, the part that does the actual computing is about the size of the end of a finger.

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When early humans began fanning, it was a revolutionary change in human life. It was hundreds of thousands of years later that people developed a writing system. In less than fifty years people have developed computers that can do most of the things humans can do. This could be a frightening development.

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A.600

B.700

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第9题
从供选择的答案中,选出最确切的解答。 (1) data effectively is crucial for success in today's c

从供选择的答案中,选出最确切的解答。

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第10题
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B.to explain what technical problems may occur with computers

C.to warn against a mentally lazy attitude towards computers

D.to discourage unnecessary investment in computers

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