首页
登录
职称英语
[originaltext](19)The first modern digital computers were developed in the 1940
[originaltext](19)The first modern digital computers were developed in the 1940
游客
2024-01-29
65
管理
问题
(19)The first modern digital computers were developed in the 1940s for military purposes that arose during World War Ⅱ. These computers filled entire rooms, and with rates of a few thousand calculations per second, they took hours to perform complex mathematical operations. In the 1970s, the first personal computers were sold. Fitting on a desktop, they are exponentially faster and more powerful than the computers that had once filled large room. (20)They were also affordable to individual consumers, which made it possible for many people to use them for personal, business and academic needs. By the mid-1990s, laptop computers able of millions of calculations per second had been developed. Currently, nearly half of the American homes have a personal computer, and businesses have come to rely on computers for nearly every function.
Now that computers are small, powerful, cheap, and affect every part of our lives, (21)the next step will be the formation of a network connecting all of these computers to each other. On this network, which some people are calling the information highway, great changes take place every day. The changes to society will be as revolutionary as those of the Industrial Age and the Renaissance. Not only will people shop and conduct business through their computers, but they will also engage with every type of human activity, from reading to simply hanging with friends. Computer networks will bring many benefits in the areas of business, education, and social interaction, producing widespread sharing of knowledge, wealth and the worldwide cultural renewal.
Questions 19 to 21 are based on the passage you have just heard.
19.When were the first modern digital computers developed?
20.Why could many people use personal computers?
21.What’s the next step for computers?
选项
A、In the 1940s.
B、In the mid-1990s.
C、In the 1970s.
D、In the 1990s.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3402537.html
相关试题推荐
[originaltext]Acommonchallengeformanyteachersiskeepingtheirstudent
[originaltext]Acommonchallengeformanyteachersiskeepingtheirstudent
[originaltext]Acommonchallengeformanyteachersiskeepingtheirstudent
[originaltext]W:Hello!Canyouintroduceyourselfplease?M:Sure,mynameis
[originaltext]W:Hello!Canyouintroduceyourselfplease?M:Sure,mynameis
[originaltext]W:Charles,Iwanttoaskifyouknowanythingabouthotelsonth
[originaltext]W:Charles,Iwanttoaskifyouknowanythingabouthotelsonth
[originaltext]W:Charles,Iwanttoaskifyouknowanythingabouthotelsonth
[originaltext]AdeafandblindwomanfromAustraliahasbecomethefirstpe
[originaltext]Windturbinesaretallstructureswithlargebladesusedtop
随机试题
Smallbusinessownersmostaccepttheburdensofentrepreneurship(企业家的职责).B
ElNinoisadisturbanceoftheworld’snormalclimatepattern.DuringElNi
DearSirs,Iamwritingtoconfirmthelossofmycreditcard(信用卡).Itelep
Theprincipalofthecollegeisa(respect)______oldlady.respectable形容词修饰名词,r
患者女性,60岁,发现左侧腹股沟区可复性肿块2年,久站或咳嗽时局部胀痛,既往慢性
肝性脑病患者的饮食治疗不恰当的是A.高维生素 B.高蛋白质 C.高热量 D
有关心房颤动的治疗原则,不正确的是A.治疗原发的心血管病 B.48小时内新发
(2018年真题)()是反洗钱和反恐怖融资领域最具权威性的政府间国际组织之一。
关于项目团队表现阶段状态的表述,正确的有( )。 A.团队工作开始进入有序
某高层建筑住宅楼工程的施工图设计已经完成,且计划工期为24个月,其应采用()合
最新回复
(
0
)