前列腺切除psa的最佳值:请帮我翻译一下,谢谢

第一代计算机1942年诞生在美国,是用电子管作为主要的计算机,而当时的计算机还不是很被人看重.
The first generation of computers appeared in America in 1942. They used vacuum tubes as the main part. But they were not highly valued at that time.

第二代计算机的体积小,速度快,功耗低,性能更稳定,可靠性高,它还应用于工程设计、数据处理、事物管理。
The second generation of computers became smaller, faster, more energy-efficient and more reliable with better performance. They were applied to engineering design, data processing and affair management.

第三代计算机的特点是采用了微程序设计技术，在存储技术方面，出现了速度更快，更可靠的半导体存储器代替磁芯存储器。
The third generation of computers were characterized by the use of the microprogramming technique. Semiconductor memories started to be used instead of magnetic cores, which drastically increased the speed and reliability of computers.

The first generation of computer was invented in America in the year 1942,it was the computer that made up of vacuum tube.But at that time,people didn't think much of it.

The second generation of computer had a smaller cubage,higher speed,lower power loss and steadier performance.It was used in engineering design,data processing and affair management.

The third generation of computer's characteristics are that it adopt Microprogramming Technique,at the aspect of memory technique,more dependable semi-conductor memory which had a higher speed instead of the magnetic core saves.

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