As we shall see that word in later times means some powerful individual, but it doesn't mean what it means here, the boss, the single monarchical controller of everything.

正如我们所见,这个词之后用来形容有权力的人,但在那时,它有一个不同的含义,代表首领,君临万物

耶鲁公开课 - 古希腊历史简介课程节选

The software, both platforms and individual app would be the controller functions.

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The Leap Motion controller has a 150-degree field of view, and tracks individual hands and all 10 fingers at up to 290 frames per second.

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