Вопрос № 857145 - Английский язык

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1_______. Based on capacity, speed and reliability they can be divided into three categories of computers:
1. The mainframe computers are computers used by large organizations like meteorological surveys and statistical institutes for performing bulk mathematical computations. 2_______.
2. The microcomputers are the most frequently used computers better known by the name of “personal computers”. 3_______.
3. The minicomputers like the mainframe computers are used by business organization. 4_______.

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50 years ago people didn’t even heard of computers. 1_______.
Computer technology is the fastest-growing industry in the world. 2_______. Today, its job can be done by a chip the size of a pin head. And the revolution is still going on.
Very soon we’ll have computers that we’ll wear on our wrists or even in our glasses and earrings.
3_______. They will contain electronic “neural networks”. Of course, they’ll be still a lot simpler than human brains, but it will be a great step forward. 4_______.

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1_______. Psychologists now recognize Internet Addiction Syndrome (IAS) as a new illness that could cause serious problems and ruin many lives.
IAS is similar to other problems like gambling, smoking and drinking. 2_______. They need to use it first thing in the morning. They lie to their parents and partners about how much time they spend online. 3_______.
Many users spend up to 40 hours a week on the Internet. 4_______.

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Laptops, or notebook computers as they are also known, have become smaller and lighter in recent years. 1_______. The smaller and lighter they are, the easier they are to carry.
However, as PCs have become more powerful in terms of memory, so have laptops. 2_______.
So what are the disadvantages of laptops? 3_______. Because of a laptop’s size, its keyboard is often more difficult to type on than a regular keyboard. The screen is often quite small, too. 4_______. Although this was a major disadvantage a few years ago, the invention of memory sticks, which serve the same purpose as CD-ROMs, has basically solved that problem.

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Edinburgh-born scientist Alexander Graham Bell patented his invention of the telephone in eighteen seventy-six. The following year, the great American inventor Thomas Edison produced the first working telephone. With telephones soon becoming rapidly available, the days of letter-writing became numbered.
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The telephone was invented in …

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The computer has been life-transforming invention. British mathematician Charles Babbage designed a form of computer in the mid-1830s, but it was not until more than a century later that theory was put into practice. Now, a whole generation has grown up with calculators, windows, icons, computer games and word processors, and the Internet and e-mail have transformed communication and information.
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The Internet and e-mail have transformed …