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A．they could do computations
B．they could work much faster than human beings
C．they looked like an abacus
D．they could remember data quickly
答案
更多“Electronic computers were given the name in the beginning just for the simple reason that_”相关的问题
第1题
The marvel of the machine age, the electronic computer has been in use only since 1946. It can do simple computations—add, subtract, multiply, and divide—with lightning speed and perfect accuracy. It can multiply two 10-digit numbers in 1/1, 000 second, a problem that would take an average person five minutes to do with pencil and paper. Some computers can work 500, 000 times faster than any person can.
Once it is given a program, that is, a carefully worked-out set of instructions devised by a technician trained in computer language, a computer can gather a wide range of information for many purposes. For the scientist it can get information from outer space or from the depths of the ocean. In business and industry the computer prepares factory inventories, keeps track of sales trends and production needs, mails dividend checks, and makes out company payrolls. It can keep bank accounts up to date and make out electric bills. If you are planning a trip by plane, the computer will find out what route to take and what space is available.
Why does the author regard the electronic computer as the marvel of the machine age？
A．Because electronic computers are rare.
B．Because people know little about electronic computers.
C．Because electronic computers can do much more kinds of work that human beings can't.
D．Because electronic computers have been widely suspected.
第2题
In 1953 there were only about 100 computers【4】use in the world. Today hundreds of millions of computers are【5】in homes, schools, businesses, government offices, and universities for almost every conceivable【6】.
Modern desktop【7】computers, or PCs, are many times more powerful than the huge, million dollar【8】of computers of the 1960s and 1970s. Most PCs can perform. from 400 million to several billion operations per second. These computers are used not【9】for household management and personal entertainment, but also for most or the automated【10】required by small business. The fastest desktop computers are called workstations, and they are generally used for scientific, engineering, or advanced business application.
(1)
第3题
Some of the computer experiments now going inspire imagination of the future. For example, scientists are working in devices that can electronically perform. some sight and hearing functions, which could make easier for the blind and deaf. They are also working on artificial arms and legs that respond to the electric impulses (脉冲) produced by the human brain. Scientists hope that someday a person who has lost an arm could still have near-normal brain control over an artificial arm.
Video games, computerized effects in movies, and real-life training machines now being used by the U. S. Army are causing some people to predict new educational uses for computers. Computers could someday be used to imitate travel to other planets, to explore the ocean floor or to look inside an atom.
Experiment with electronic banking and shopping inspire predictions that these activities will soon be done from home computer terminals (终端) . Cars, too, might be equipped with computers to help drivers find their way around or to communicate with home and office computers.
Many people, including handicapped (残废的) workers with limited ability to move around, already are working at home using computer terminals. Each terminal is connected to a system at a company's main office. Some futurists say the day may come when few people will have to leave home to go to work—they'll just turn on a terminal.
Which of the following would be the most appropriate title for the passage？
A．Futurists and Computers
B．A Look at Future Uses of Computers
C．Computer Experiments
D．Scientists and Computers
第4题
E-mail or electronic mail, is considered as the modem communication in the new age. It iscarried out in computers all over the world by millions of users. In this invisible world as many people call it,the users can send and receive letters to and from every comer of the earth. They share thoughts with pen pals (笔友)in New Zealand，ask strangers in Bombay (孟买)questions，debate with businessman in Manhattan. All of these are just happening in computers as fast as the travelling of the light,no writing and speaking,no paper and stamps are necessary.
E-mail is a pipeline to thousands of experts on everything;it is a means of meeting people with similar interests or problems. But it is not a live talk—a real conversation like those in telephones.E-mailers compose letters at leisure on their computers, then send them by phone line to an on-line service,and then they go forward to the right place. A response can be back within hours,depending on how often the recipient(接受者)checks in.
A vast global networks of on-line services for E-mail has been built. A lot of people are regularly using this service in the USA. People believe that E-mail, the computerized exchange, would create friendship and business developments, and would change people’ s life in the world. Which of the following expression is not for E-mail？
A.Communication in new ag
B.Invisible world
C.A live talk
D.Computerized exchange
Which of the following does the writer think is a shortcoming of E-mail？A.Happening as fast as the travelling of light.
B.No writing and speaking
C.No paper and stamps.
D.Response depending on the recipient.
Which of the following is NOT true？A.E-mail is carried out in computers.
B.A response of an E-mail depends on how often the recipient checks in.
C.People don, t believe that E-mail will create friendship.
D.E-mail is not a real conversation.
第5题
The virus told each computer to make many copies of itself. Within a few minutes, all the computers' power was being used to make copies of the virus. The computer could do no other work. It finally slowed down greatly, or simply stopped working. Computer experts spent many days trying to destroy the virus in the computer system.
The experts agree the virus could have been much worse. They say it could have sent orders to destroy huge amounts of electronic information.
Many experts believe, the recent computer virus showed the need for better computer security (安全). But that is a problem. The affected system provides a free exchange (交换) of ideas and information among universities, private companies and government offices. Increasing security too much would destroy this exchange. It would slow progress on many important research projects.
Which of the following statements is true？
A．Many computers were attacked by a virus in the U. S.
B．Many computers attacked by a virus in the U.S. lost their information.
C．A computer virus can harm human body.
D．A computer virus can help the computer owner do many things.
第6题
A.International Banking Policies
B.The History of Monetary Exchange
C.The Development of Paper Currencies
D.Current Problems in the Economy
第7题
In ancient times wealth was measured and exchanged in things that could be touched: food, tools, and precious metals
and stones. Then the barter system was replaced by coins, which still had real value since they were pieces of rare
metal. Coins were followed by fiat money, paper notes that have value only because everyone agrees to accept them.
Today electronic monetary systems are gradually being introduced that will transform money into even less tangible
forms, reducing it to a series of “bits and bytes”, or units of computerized information, going between machines at
the speed of light. Already, electronic fund transfer allows money to be instantly sent and received by different
banks, companies, and countries through computers and telecommunications devices.
Which of the following would be the most appropriate title for the passage？
A. International Banking Policies
B. The History of Monetary Exchange
C. The Development of Paper Currencies
D. Current Problems in the Economy
第8题
Some of the computer experiments now going on inspire exciting visions of the future. For example, scientists are working on devices that can electronically perform. some sight and hearing functions, which could make life easier for the blind and deaf. They're also working on artificial arms and legs that respond to the electric impulses produced by the human brain. Scientists hope that some day a person who's lost an arm could still have near-normal brain control over an artificial arm.
Video games, computerized special effects in movies, and real-life training machines now being used by the US Army are causing some people to predict new educational uses for computers. Computers could some day be used to simulate travel to other planets, to explore the ocean floor, or to look inside an atom.
Experiments with electronic banking and shopping inspire predictions that these activities will soon be done from home computer terminals. Cars, too, might be equipped with computers to help drivers find their way around (Honda has one in an experimental car) or to communicate with home and office computers. Many people, including handicapped workers with limited ability to move around, already are working at home using computer terminals. Each terminal is connected to a system at a company's main office. Some futurists say the day may come when few people will have to leave home to go to work -- they'll just turn on a terminal
A growing number of factories such as the General Motors Plant in Newark, Delaware, "hire" computerized robots to perform. tasks such as spot welding. Some executives get a gleam in their eyes as they envision the spread of these "perfect workers" -- no coffee breaks, no strikes, and no vacations or sick days.
These modern and potential computer uses are possible because of the silicon microchip.
These chips, which have become increasingly complex since their beginning in 1959, contain a network of information pathways. Electronic impulses travel along the paths. The plans for a chip look much like a city street plan and can be as large as a football field. It can take as long as three months to complete a new chip design. Chips are used to store information, too. An entire "computer" can be put onto one chip -- called a microprocessor.
As chips become even more complex, easier to make, and less costly, futurists predict limitless possibilities. A group of Japanese scientists is working on a new generation of computers, which they hope will be able to understand vocal instructions, talk back to their users, and automatically try out alternate solutions to a problem to come up with the best answer.
Some people say that the humans of the future will never be without their companion -- computers. Predicting the future can be tricky, of course. In 1948 an IBM study predicted that there would never be enough demand for computers to justify going into the business!
What is the purpose of the passage？
A．To tell the readers what computers will look like in the future.
B．To show the close relations between man and computers.
C．To tell the readers how important silicon microchips are.
D．To talk about the possible future uses of computers.
第9题
Composers today use a wider variety of sounds than ever before, including many
that were once considered undesirable noises. Composer Edgard Varese (1883-1965)
called thus the "liberation of sound...the right to make music with any and all sounds."
Electronic music, for example―made with the aid of computers, synthesizers, and
(5) electronic instruments―may include sounds that in the past would not have been
consdered musical Environmental sounds, such as thunder, and electronically generated
hisses and blips can be recorded, manipulated, and then incorporated into a musical
composition. But composers also draw novel sounds from voices and nonelectronic
instruments. Singers may be asked to scream, laugh, groan, sneeze, or to sing phonetic
(10) sounds rather than words. Wind and string players may lap or scrape their instruments.
A brass or woodwind player may hum while playing, to produce two pitches at once; a
pianist may reach inside the piano to pluck a string and then run a metal blade along it. In
the music of the Western world, the greatest expansion and experimentation have involved
percussion instruments, which outnumber strings and winds in many recent compositions.
(15) Traditional percussion instruments are struck with new types of beaters; and instruments
that used to be couriered unconvennonal in Western music―tom-toms, bongos,
slapsticks, maracas―are widelv used.
In the search for novel sounds, increased use has been made in Western music of
Microtones. Non-Western music typically divides and interval between two pitches more
(20) finely than Western music does, thereby producing a greter number of distinct tones,
or micro tones, within the same interval. Composers such as Krzysztof Pmderecki create
sound that borders on electronic noise through tone clusters―closely spaced tones played
together and heard as a mass, block, or band of sound. The directional aspect of sound has
taken on new importance as well Loudspeakers or groups of instruments may be placed
(25) at opposite ends of the stage, in the balcony, or at the back and sides of the auditorium.
Because standard music notation makes no provision for many of these innovations,
recent music scores may contain graphlike diagrams, new note shapes and symbols, and
novel ways of arranging notation on the page.
What does the passage mainly discuss？
A．The use of nontraditional sounds in contemporary music
B．How sounds are produced electronically
C．How standard musical notation has beer, adapted for nontraditional sounds
D．Several composers who have experimented with the electronic production of sound
第10题
As clerical loads increased, "something had to_____(4), and that was always face time with patients," says Dr.Bhakti Patel, a former chief resident in the University of Chicago&39;s internal-medicine program. In fall 2010, she helped_____(5)a pilot project in Chicago to see if the iPad could improve working conditions and patient care. The experiment was so_____(6)that all internal-medicine program adopted the same_____(7)in 2011. Medical schools at Yale and Stanford now have paperless, iPad-based curriculums. "You&39;ll want an iPad just so you can wear this" is the slogan for one of the new lab coats_____(8)with large pockets to accommodate tablet computers.
A study of the University of Chicago iPad project found that patients got tests and_____(9) faster if they were cared for by iPad-equipped residents.Many patients also_____(10) a better understanding of the illnesses that landed them in the hospital in the first place.
A.dependent
B.designed
C.fast
D.flying
E.gained
F.give
G.growing
H.launch
I.policy
J.prospect
K.rather
L.reliable
M.signal
N.successful
O.treatments
第1题答案是：
