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by carapace
1405 days ago
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Those are much more recent attacks. We're talking about a time when CRT screens were the norm, they are noisy enough to read from quite a distance. > A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a phosphorescent screen. https://en.wikipedia.org/wiki/Cathode-ray_tube That causes a bit more signal than a keyboard, mic, or MEMS accelerometer, eh? :) |
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