They had a 70% market share of mainframe computers.

他们占有70%的大型计算机的市场份额。

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Before 1980, IBM made only mini and mainframe computers.

1980年以前，IBM只制造小型和大型计算机。

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Virtualisation dates back to the age of mainframe computers.

虚拟化技术最早始于大型机的时代。

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The early IBM mainframe computers were so expensive that only big companies could own them.

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The problem extends far beyond mainframe computers, though not always with such serious consequences.

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They looked at the world of mainframe computers run by professional programmers and thought, anybody can have this.

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