| 41. | Because the bus lines are electrically open collector it works like a long OR gate between all device line drivers.
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| 42. | Other airports-- like Kennedy, La Guardia and Newark Liberty-- present offer the service selectively, in certain terminals or gate areas.
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| 43. | But many elevators in older apartment buildings have swinging or telescoping doors or gates that must be operated by hand.
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| 44. | There are long, long sections that detail Microsoft's machinations without describing a single specific act by either Ballmer or Gates.
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| 45. | For AND and OR gates, we generalization is obvious, and this is mathematically because they are associative and commutative operators.
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| 46. | Like many of Union Pacific's crossings in the area, this one, known as Crossing 123, had no lights or gates.
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| 47. | Likewise, a user of FPGAs or gate arrays will only use the analysis portion, as the design is already fixed.
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| 48. | Up to three unique pass codes can be programmed at the same time to work three different garage doors or gates.
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| 49. | More generally one may complement any of the eight subsets of the three ports of either an AND or OR gate.
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| 50. | Two teenagers were killed and a third seriously injured at a crossing in Miamisburg, Ohio, that had no warning lights or gates.
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