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Electronic imager - An electronic imager is an electronic device that detects electromagnetic radiation with spatial resolution. It is the electronic analog of the photographic plate or film.
Decade (log scale) - A decade on a graphical logarithmic scale represents multiplication by 10 from the previous value. It is commonly used to represent the frequency response of electronic circuits since depicting frequencies on a linear scale is not practical.
System Usability Scale (SUS) - The System Usability Scale (SUS) is a simple, ten-item attitude scale giving a global view of subjective assessments of usability. It was developed by John Brooke at Digital Equipment Company in the UK in 1986 as a tool to be used in usability engineering of electronic office systems.
Letter scale - A letter scale is a weighing scale used for weighing letters in order to determine the correct amount of postage. Until the 1990s most letter scales were mechanical, but today electronic scales are the most common.
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