# Tag Info

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Your understanding of the issues is good. Q1: It's not overkill at all. All of the elements you've mentioned are needed. Q2: The low-pass filter frequency needs to significantly attenuate all frequencies above 1/2 the sampling frequency. It makes sense for a 'low fi' arrangement to reduce the filter frequency a bit so as to simplify filter design which ...

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The Bekenstein Bound sets the theoretical maximum storage density for storage media, which is equal to the entropy of a black hole of the same volume, or roughly: $$I<=\frac{2πkRE}{ħc\ln2}$$ where I is the information expressed in number of bits contained in the quantum states in the sphere. This works out to $$2.5769082 × 10^{43} × M × R$$ where M is ...

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Physical limits are related to the advance in technology. 20 years ago for humans, transistors of 1 nm were unimaginable. The limit that you mention can be established by the actual technology, but we can not set the physical limit: maybe in the future, we will store data in atoms or something like that. Maybe the question will be better like this "What'...

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They are the extremes of the voltage at the input which define the required 0 and 1 logic levels. On the data sheet Logic 1 must be at least 2.0v and logic 0 less than 0.8 to function properly.

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