non-return-to-zero

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non-return-to-zero

[′nän ri‚tərn tə ′zir·ō]
(computer science)
A mode of recording and readout in which it is not necessary for the signal to return to zero after each item of recorded data. Abbreviated NRZ.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

NRZ

(Non-Return-to-Zero) A data modulation method in which the 0s and 1s are represented by different polarities, typically positive for 0 and negative for 1. See NRZI.
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