Many advances in computer technology took place in the twenties after 1950. They are generally classified into four stages or generations.
在1950年之后的二十年内，电脑技术获得了长足进展，一般被划分为四个阶段或四代。
Many advances in computer technology took place in the twenties after 1950. They are generally classified into four stages or generations.
在1950年之后的二十年内，电脑技术获得了长足进展，一般被划分为四个阶段或四代。
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