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A computer can store ______ information because it has a very large memory.
A．a great many
B．vast amounts of
C．a large number of
D．a number of
答案
更多“A computer can store ______ information because it has a very large memory.A．a great manyB”相关的问题
第1题
______ information, it can also store the information as fast as it is gathered.
A．Not only an electronic computer can gather
B．Not only can gather an electronic computer
C．Not only can an electronic computer gather
D．Not only gather an electronic computer
第2题
This new kind of computer can ______ facts.
A．gather and to store
B．gather and stored
C．gather and storing
D．gather and store
第3题
W: You could go to a computer store, or a discount store, but if I were you, I'd look into some of the special offers through the university. I saw something in the paper just last night.
Q: What advice does the woman give the man？
(19)
A．To buy the computer at a discount store.
B．To put an ad in the newspaper for a computer.
C．To go to a computer store to buy the computer.
D．To buy the computer at the university as a special offer.
第4题
A.the common law of contracts
B.the objective law of contracts
C.the Uniform. Computer Information Transactions Act
D.the Uniform. Commercial Code
第5题
听力原文： A computer is a machine designed to perform. work mathematically and to store and select information that has been fed into it. It is run by either mechanical or electronic means. These machines can do a great deal of complicated work in a very short time. A large computer, for example, can add or subtract nine thousand times a second, multiply a thousand times a second, or divide five hundred times a second. Its percentage of error is about one in a billion digits. It has been estimated that human beings making calculations average about one mistake per two hundred digits.
The heart of an electronic computer lies in its vacuum tubes, or transistors. Its electronic circuits work a thousand times faster than the nerve cells in the human brain. A problem that might take a human being two years to solve can be solved by a computer in one minute, but in order to work properly, a computer must be given instructions--it must be programmed.
Computers can be designed for many specialized purposes--they can be used to prepare payrolls, guide airplane flights, direct traffic, even to play chess. Computers play an essential role in modern automation in many plants and factories throughout the world.
(33)
A．One in a billion digits.
B．Zero.
C．One mistake per two hundred digits.
D．One in a million digits.
第6题
听力原文：M: You look happy. Did you sell lots of things at the store today？
W: No. I bought something. It was a great deal.
M: So what is it？
W: A laptop computer.
M: Really？ That's great. They are really convenient. You can take them anywhere.
W: You are right. That's what I thought. I can use the computer at home and at my store.
M: What will you use it for at the store？
W: To keep track of all the things in the store. How much I sell them for and which article sells best, and what are the things in sufficient stock.
M: That's a good idea. But I didn't think you knew how to use a computer.
W: I have to say I don't.
M: Then why did you buy one？
W: I've heard so much about computers. And I've heard you can find so many interesting things online. I was walking past the computer store downtown. I saw they had computers on sale.
M: So you went into the store to ask a few questions.
W: That's right. And I met a nice, young salesman. He showed me lots of things a computer can do. I just had to buy one.
M: So now who is going to teach you to use it？
W: You are.
(20)
A．She is a software engineer.
B．She is an after-sale service worker.
C．She works as a salesclerk.
D．She is hunting for a job.
第7题
There are two common types of disk drives: a hard disk drive (sometimes called a fixed disk drive) and a diskette drive (sometime called a floppy disk drive).(47)(Some models might not have a hard disk drive. ) With a hard disk, your computer can store large amounts of information (called files) in one convenient place. Using a hard disk, your computer can save and retrieve information much faster than with a diskette drive.(48).
Each disk drive has a letter assigned to it, so you can tell your computer where to find information.(49)If you have a hard disk drive, it is called drive C.
If your computer has a hard disk drive, drive C, then you can store your operating system and other programs on the hard disk.(50)If your programs and information files (data files) are well organized, then your computer can find and retrieve the information much faster. Check your operating system documentation for information about how to set a directory.
If your computer has no hard disk, then you must use the diskette drive to load your programs and to store your information. Your operating system and application program documentation have information about using disk disk drives and making program diskettes and data diskettes.
(46)
A. For example, if your computer has two diskette drives, one is called drive A, the other is called drive B.
B. The hard disk drive is built into your computer.
C. The key to using your hard disk effectively is the way you store your information.
D. The 5.25-inch diskette is thin and flexible.
E. The AAA computer comes with a diskette that uses 3.5-inch diskettes.
F. A diskette drive uses a removable diskette, which has less storage space than a hard disk.
(47)
A. For example, if your computer has two diskette drives, one is called drive A, the other is called drive B.B. The hard disk drive is built into your computer.C. The key to using your hard disk effectively is the way you store your information.D. The 5.25-inch diskette is thin and flexible.E. The AAA computer comes with a diskette that uses 3.5-inch diskettes.F. A diskette drive uses a removable diskette, which has less storage space than a hard disk.
(48)
A. For example, if your computer has two diskette drives, one is called drive A, the other is called drive B.B. The hard disk drive is built into your computer.C. The key to using your hard disk effectively is the way you store your information.D. The 5.25-inch diskette is thin and flexible.E. The AAA computer comes with a diskette that uses 3.5-inch diskettes.F. A diskette drive uses a removable diskette, which has less storage space than a hard disk.
(49)
A. For example, if your computer has two diskette drives, one is called drive A, the other is called drive B.B. The hard disk drive is built into your computer.C. The key to using your hard disk effectively is the way you store your information.D. The 5.25-inch diskette is thin and flexible.E. The AAA computer comes with a diskette that uses 3.5-inch diskettes.F. A diskette drive uses a removable diskette, which has less storage space than a hard disk.
(50)
A. For example, if your computer has two diskette drives, one is called drive A, the other is called drive B.B. The hard disk drive is built into your computer.C. The key to using your hard disk effectively is the way you store your information.D. The 5.25-inch diskette is thin and flexible.E. The AAA computer comes with a diskette that uses 3.5-inch diskettes.F. A diskette drive uses a removable diskette, which has less storage space than a hard disk.
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第8题
What does this store do？
A．Rent computers only.
B．Rent computers and office furniture.
C．Rent and sell computers.
D．Rent and repair computers only.
第9题
In only a short time, computers have【B8】changed the way in which many kinds of work are done.【B9】, they have created whole new areas of work that did not exist【B10】to their development. We have all heard of computers【B11】the course of rockets, preparing bank statements,【B12】elections, forecasting weather, and so【B13】Computers do many tasks for us that would be【B14】difficult if we did not have them. Computers take routine tasks and do them in a【B15】of the time it would take a man or even a【B16】of men to do them.
Many people imagine that a computer is a very large【B17】machine. Certainly a computer can function in that way,【B18】this is a very restricted view of the nature of a computer. The message of a familiar【B19】is that machines should work, but men should think. This is the basic philosophy of computer science,【B20】in the advanced states of computer technology.
【B1】
A．done
B．prepared
C．explored
D．investigated
第10题
Universal Product Code
What are the zebra stripes (See the figure) on the Instant Mashed Patato Flakes package？ They are special black and white vertical lines. These black and white stripes can be read by an optical scanner, or computer. The "scanner", which reads the lines of code, is a small laser beam of light. When the light rays is broken by the black stripes, the computer "reads" the information about the product.
This code is called the Universal Product Code (UPC). It is designed to add speed and efficiency to stores by using computers. It can do this in several ways. First, it is not necessary for workers to put individual prices on items. By using UPC, the computer can print out the accurate price of the item. Errors in prices are eliminated, or done away with. Also, the time spent checking out is reduced UPC gives an itemized receipt to the customer with all the items, prices, and totals. The store clerk does not need to spend time checking the price on the item and punching it into the cash register. This UPC computerized system will probably save as much as 45 percent of the checkout clerk's time.
What do the stripes mean？ How does the computer interpret the stripes？ The number printed below the vertical bars identifies the manufacturer and the manufacturer's item. As many as 10 trillion individual machine-readable numbers can be used with this system. In the example, the 0 on the left side means that it is a grocery item. The numbers 36800 indicate the manufacturer, in this case it is the Food Club Company. The last five digits, 51512, mean it is a pack of mashed patato flakes. The light rays from the light beam read these lines, and the message is sent directly to the computer. The computer then finds the information about this product (price, inventory data) and sends it instantly back to the terminal at the checkout counter. At the same time, it keeps an inventory for the store manager. Many products have labels with these stripes.
The figures printed below the stripes are codes of the producer and the product.
A．right
B．wrong
C．Doesn't say
