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The Digital Computer and Its Applications
The first real digital computer , known as the ENIAC, was develop by John Mauchly and J.Presper Eckert .ENIAC, made in a laboratory of the Northwestern university in Evanston ,I11.,in1942,was composed of more than 30 thousand electronic tubes and nearly one million pieces of other components such as resistors, condensers and switches.It occupied three large rooms and consumed electricity that would otherwise be enough to power a small city with 30 thousand residents . To dissipate the heat emanated from inside the machine, powerful ventilators were used. The operations speed was very low, about 200 operations per second.
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数字计算机及其应用
翻译公司第一台真实的数字式计算机称为ENIAC , 时John Mauchly和Presper Eckert 开发的。ENIAC于1942年在美国伊利诺伊州的Evanston 市的西北大学的一座实验室里建造而成。它由3万多个电子管，近100万件其他零件如电阻器 ， 电容器，开关组成 。它占据3间大房间，它消耗的电力足够供应一座有3万居民的小城市的电力。为了散掉从及其内部发出的热量，使用了强力排风机。它的操作速度很低，大约每秒200次操作。上海日语翻译
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