wants a BANANA-3 with a printer and software. Okay, step right up, ladies and gentlemen. This computer can do anything!
Task 3 【答案】 A.
1) They are important because they are able to measure quantities such as electricity and temperature. 2) Digital computers.
3) Only one person at a time can use them.
4) It is because their owners do not spend enough time learning how to operate them efficiently.
5) Each person who uses a minicomputer has a computer terminal that is connected to the minicomputer by interface wires. With the help of the operating system, the CPU is able to divide its time and perform for all the users. B.
Similarities and
Microcomputers and Minicomputers
Differences between
Similarities 2．Both of them can be used in small businesses. 3．Each computer has only one CPU. 1．They are two kinds of common digital computers. Differenc1. Minicomputers are larger than microcomputers. es 2. Microcomputers are used more frequently in large offices and businesses than in small businesses. 3. More than one person can use a minicomputer at the same time. 【原文】
There are two primary kinds of computers: analog computers and digital computers. Unless you are a scientist, you probably will not use analog computers. These computers are important because they are able to measure quantities such as electricity and temperature.
In contrast, digital computers perform their tasks by counting. Some digital computers are built to help solve only a specific kind of problem. For example, digital computers that monitor airplanes flying in and out of airports are built only for that task. Most digital computers, though, can be used to help solve many kinds of problems. Among them, microcomputers and minicomputers are two kinds of common digital computers. Microcomputers, also called personal computers, are the newest computers. Many are about the size of a very small television set. Some, however, are so small and light that people can carry them easily on business trips. Because computer manufacturers produce an enormous amount of computer hardware, it is possible for anyone to own and use a microcomputer. Therefore, we now see these machines in many homes, schools, and businesses. There is one disadvantage to these computers, though. Only one person at a time can use them. Also, many people who buy microcomputers do not understand what these machines can and cannot do. Some experts say that almost half of all micro-computers are not used often because their owners do not spend enough time learning how to operate them efficiently.
Like microcomputers, minicomputers are used in small businesses. However, they are larger than microcomputers and are used more frequently in large offices and businesses than in small businesses. Another difference is that more than one person can use a minicomputer at the same time. We call this time-sharing. Some minicomputers can have more than a hundred people time-sharing them. Each person who uses a minicomputer has a computer terminal that is connected to the minicomputer by interface wires. But even though more than one person can use a minicomputer, the computer has only one CPU. With the help of the operating system, the CPU is able to divide its time and perform for all the users.
Task 4 【答案】 A.
1) It wasn't the typical low mechanical voice that sounded like a record being played at too slow a speed. It sounded natural. It had charm to it. 2) Lupa had once heard that even a sophisticated analog computer couldn't pick up certain subtleties in the English language, no matter how good the programming is. 3) When Lupa stood up and walked around the room, it was evident to her that somewhere in the building, listening through an intercom was someone with a microphone. B.
1) They're running a contest. The kids are supposed to name me. I'm dreading the whole thing, believe me.
2) You know something; I thought you'd be different. Just once today I was hoping I'd get someone who wouldn't try to beat
the program.
3) You wouldn't happen to know what day of the week September the fourteenth, 1321, fell on, would you
It was a Sunday; but how do you know whether I'm right Thank you for visiting the computer exhibit. 【原文】
Lupa laughed. She liked the voice that had been selected for the computer. It wasn't the typical low mechanical voice that sounded like a record being played at too slow a speed. It sounded natural. It had charm to it. \
\yet,\the computer answered. \running a contest. The kids are supposed to name me. I'm dreading the whole thing, believe me.\
Now Lupa thought this was clever, the way they had programmed the computer. She wondered if there was some way to screw up the program. She had once heard that even a sophisticated analog computer couldn't pick up certain subtleties in the English language, no matter how good the programming is, so she decided to give it a try.
\ The computer was silent.
\without claws.\
Lupa waited in silence for a response.
\know something,\the computer said. \thought you'd be different. Just once today I was hoping I'd get someone who wouldn't try to beat the program.\
Lupa smiled. \was marvelous,\she thought to herself. \
\Mi dispiace.\
\you speak Italian,\the computer said with some sarcasm.
\Qui, d'accord,\C'est vrai.\
\French, too. Your French is better than your Italian. Though neither one is great. Now, if you'll excuse me, I have to shut down. It's closing time.\
Lupa stood up and walked around the room. It was evident to her that somewhere in the building, listening through an intercom was someone with a microphone. She thought about how to test for this.
\wouldn't happen to know what day of the week September the fourteenth, 1321, fell on, would you\ \was a Sunday,\the computer answered, \how do you know whether I'm right Thank you for visiting the computer exhibit.\
Task 5 【答案】 A.
1) b) 2) c) B.
1) F 2) F 3) F 4) T C.
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