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scanning disk

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noun Television.
(in mechanical scanning) a disk with a line of holes spiraling in from its edge, rotated in front of a surface so as to expose a small segment as each hole passes before it for transmitting or reproducing a picture.
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QUIZ YOURSELF ON "WAS" VS. "WERE"!
Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

Origin of scanning disk

First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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