The first computer, ENIAC, was a huge machine that weighed 30 tons and occupied about 1800 square feet. It used 18000 vacuum tubes and consumed a lot of electricity. Although its computing speed was very fast at that time, it could perform 5000 addition operations per second. However, compar...
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A. It was invented in China. B. It was not very big. C. It was very cheap. D. It couldn't work fast. 相关知识点: 试题来源: 解析 第一台计算机ENIAC诞生于美国,体积庞大,造价昂贵,而且运行速度缓慢。与现在的计算机相比,它的计算能力非常有限。 题目问的是关于第一台计算机,我们知道什么? -...
Do you know ___ the first computer was invented? A. how B. what C. when D. why 相关知识点: 试题来源: 解析 C。本题考查宾语从句的连接词。根据句意,询问第一台电脑被发明的时间,“when”表示时间,符合题意。A 选项“how”表示方式;B 选项“what”表示事物;D 选项“why”表示原因。反馈 ...
The identity of the first digital computer is a topic that has been debated, both in terms of the facts and in definition. The closest thing to an official answer is the Atanasoff-Berry Computer, or ABC, which was declared the first electronic digital computer in a 1973 court case. It ...
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对:The new office is very spacious. 3:这台电脑是我打折时买的。 错:I got this computer from bargain. 对:I got this computer on sale. 4: 他很有趣。 错:He s so interesting. 对:He s so funny. 5: 我喜欢浓咖啡。 错:I like heavy coffee. ...
What was the most important invention during the Information Age? A. The computer B. The telephone C. The television D. The radio 相关知识点: 试题来源: 解析 A。解析:在信息时代,计算机是最重要的发明。计算机的出现改变了人们获取、处理和传播信息的方式,极大地推动了信息时代的发展。选项B,电话虽然...