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Information stored on magnetic disk can be retrieved faster than if that same information were on ta
pe.
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更多“Information stored on magnetic…”相关的问题
In order to keep track of the hacker, ______.
A．the telephone company cut all the telephone lines
B．the police stored false information in Stoll' s computer system
C．Stoll told the police everything he knew
D．Stoll spent lots of time and efforts
How to Save Web Page Information
You can save the whole web page or part of its contents(text,graph or linkage)as file kept on disk.They can be displayed or used in other files,also sent to other,or printed.
To save web pages,you can；
Save the current web pages in your computer.To do that,single click"save as"on"file"menu,and on the"save web page"dialogue box select the folder for saving web pages,and on the"file name"input the file name of this web page,then single click "save"button；
Duplicate the information from the web page to file.To do that,you select the infor mation on the web page to be saved(if you want to save the whole web page,then single click"all select"button on"edit"menu、and single click"copy"on"edit"menu.Finally,turn to the procedure for editing the information(for example,word),single click the position where the information is stored and then single click the "paste"on"edit"menu.
回答题
There was a time when any personal information that was gathered about us was typed on a piece of paper and（26）in a file cabinet．It could remain there for years and, often（27）, never reach the outside world．
Things have done a complete about-face since then．（28）the change has been the astonishingly（29）development in recent years of the computer．Today, any data that is（30）about us in one place or another--and for one reason or another--can be stored in a computer bank．It can then be easily passed to other computer banks．They are owned by individuals and by private businesses and corporations, lending（31）, direct mailing and telemarketing firms, credit bureaus, credit card companies, and（32）at the local, state, and federal level．
A growing number of Americans are seeing the accumulation and distribution of computerized data as a frightening（33）of their privacy．Surveys show that the number of worried Americans has been steadily growing over the years as the computer becomes increasingly（34）, easier to operate, and less costly to purchase and maintain．In 1970, a national survey showed that 37 percent of the people（35）felt their privacy was being invaded．Seven years later, 47 percent expressed the same worry．Arecent survey by a credit bureau revealed that the number of alarmed citizens had shot up to 76percent．
第（26）题 查看材料
There is much debate about the capacity and duration of the short term memory. The most accepted theory comes from George A. Miller, a cognitive psychologist who suggested that humans can remember approximately seven chunks of information. A chunk is defined as a meaningful unit of information, such as a word or name rather than just a letter or number. Modern theorists suggest that one can increase the capacity of the short term memory by chunking, or classifying similar information together. By organizing information, one can optimize the STM, and improve the chances of a memory being passed on to long term storage.
When making a conscious effort to memorize something, such as information for an exam, many people engage in "rote rehearsal". By repeating something over and over again, we are able to keep a memory alive. Unfortunately, this type of memory maintenance only succeeds if there are no interruptions. As soon as a person stops rehearsing the information, it has the tendency to disappear. When a pen and paper are not handy, you might attempt to remember a phone number by repeating it aloud. If the doorbell rings or the dog barks to come in before you get the opportunity to make your phone call, you will forget the number instantly. Therefore, rote rehearsal is not an efficient way to pass information from the short term to long term memory. A better way is to practice "elaborate rehearsal". This involves assigning semantic meaning to a piece of information so that it can be filed along with other pre-existing long term memories.
Encoding information semantically also makes it more retrievable. Retrieving information can be done by recognition or recall. Humans can recall memories that are stored in the long term memory and used often. However, if a memory seems to be forgotten, it may eventually be retrieved by prompting. The more cues a person is given (such as pictures. , the more likely a memory can be retrieved. This is why multiple choice tests are often used for subjects that require a lot of memorization.
According to the passage, how do memories get transferred to the STM？ ______
A．They revert from the long term memory.
B．They are filtered from the sensory storage area.
C．They get chunked when they enter the brain.
D．They enter via the nervous system.
A. At 8 o’clock
B. I drove there myself
C. For some information
D. In the East street
The text intends to tell us that______.
A．a brain with disease is a brain with wisdom
B．an older brain may be a wiser brain
C．brains do deteriorate with age
D．how an older brain processes information
【C1】
A．indications
B．structures
C．capabilities
D．odds
(1). The office hour is from 10.30 to 3 on Sunday.
A、 Right
B、Wrong
(2). You can find information about where to eat from the office.
A、 Right
B、Wrong
(3). The bus tour starts at 2 o’clock every day.
A、 Right
B、Wrong
(4). You are not allowed to get off the bus before the tour ends.
A、 Right
B、Wrong
(5). This is a telephone message.
A、 Right
B、Wrong
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.
Computers can do all kinds of work. When someone buys something in a department store, in formation about the sale goes into a computer. A scientist can talk to the computer about the rocks, and the computer answers the questions. A doctor can talk to the computer and explains what is wrong with a patient. If the doctor asks why, the computer goes through its stored information and ex plains exactly why.
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.
The oldest kind of computer, the abacus, has been used since ______.
A．600
B．700
C．800
D．500
Chokwe Selassie is on a mission to help drivers avoid potholes(路面坑洼). The eighth-grader was inspired to kick off his mission on a recent morning, when his mother was driving him to school. Their car was damaged as it went over a huge pothole in the middle of the street in their hometown of Jackson, Mississippi. "I decided I was going to do something about the pothole prob-lem in my city," Chokwe says. His solution: an app(手机应用) that warns drivers when there is a pothole ahead.
Chokwe developed the app with his friends Rodriguez Ratliff and Emmanuel Brooks. "When the app detects a potheole, it is highlighted(突出显示) in red," Chokwe says. "And if you get close to the pothole, your phone will warn you. " Drivers can also use the app to report any pot-holes" they encounter, and to look for other routes they can take to avoid roads that have them.
The app relies on Current available information about the streets of Jackson. "It works by u-sing the city&39; s 311 call system, so it uses information already stored in a database," Chokwe says.
(79) Through the call system, citizens dial 3-1-1 to report non-emergency problems--whiCh in-clude potholes. Chokwe and his friends determined that focusing on the 10 busiest streets in Jack-son would give them a large enough sample size to test the prototype(原型).
(80) Although the app isn&39; t yet available for sale, Chokwe is already looking for ways to im-prove it. The prototype remains limited&39;to 10 streets in Jackson, but he hopes to add more, so that it includes every street in the city. And then he wants to go even farther. "I want to keep working on the app until it&39; s nationwide," Chokwe says.
Which of the following is the best title for the passage？
A.A Solution to Traffic Jams
B.An App to Detect Potholes
C.Pothole Problems in Big Cities
D.Poor Road Conditions
The phrase kick off in Paragraph 1 is closest in meaning to__________.A.leave
B.invent
C.begin
D.shift
People use the 311 call system to report__________.A.emergencies
B.terrorist attacks
C.non-emergencies
D.child abuse
The prototype focuses on __________ streets in Jackson.A.10
B.15
C.20
D.25
According to the passage, which of the following statements is TRUE？A.Chokwe developed the app all by himself.
B.People can buy this app from the online store.
C.His mother' s car was once damaged over a pothole.
D.The app works by using the city's 911 call system.
请帮忙给出每个问题的正确答案和分析，谢谢！
