計算機英語:關于微機的發展

Development of Microcomputers

　　Modern computers are electronic, and it was not until the 1940's that such machines could be built Research workers in America produced a working computer in 1946.The first models were very -bulky because they depended on valves similar to those you may have seen in old radio sets．Later machines had transistors and at present they use integrated circuits\which take up an incredibly small space.

　　The reason for the development of small computer parts is not just to save space but rather to in-crease the speed of computation. Present models are several thousand times as fast as the 1950 machines，which could perform about 1000 simple additions per second, but even the old computers were more 1000times faster than the human being.

翻譯：

微機的發展
 
　　現代計算機都是電子計算機，直到本世紀四十年代才得以問世，1946年美國的研究工作者制造出了一臺能實際工作的計算機。第一臺樣機的體積非常大，因為它們是依靠類似于可以在老式的無線電收音機里看到的那種電子管來工作的。后來的計算機使用晶體管，現在的計算機則使用集成電路，它們所占的空間小得令人難以置信。
   
　　研制小型計算機元件的理由不僅是為了節省空間，而且著眼于提高計算速度。目前流行的機型比50年代的計算機快幾千倍，那時的計算機每秒鐘只能完成約一千次的簡單運算。但即使是老式的計算機也要比人的手工計算快一千倍以上。

原文轉自：http://www.kjueaiud.com