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## Homework Statement

No problem statement - just the following questions.

## Homework Equations

1.Display on a CRT is most similar to what reconstruction filter?

2.How many samples are required to represent a given signal without loss of information?

3.What signals can be reconstructed without loss for a given sampling rate?

## The Attempt at a Solution

1. Gaussian filter? I'm not sure if this is correct but I thought of this since this is the most widely used.

2. I know that a signal can be reconstructed from its samples if the original signal has no frequencies above 1/2 the sampling frequency. So is it that 2*B samples are required to represent a given signal without loss of information, where B=Bandwidth? I think I read this somewhere but I'm not sure why this is the case.

3. Not sure if this question is asking for specific signals or a family of signals.