<p>ANSWER:</p>

>!COMPUTER

I am seen in darkness and in light,

>!<td>literally, can be seen in dark/light</td>

I am calm yet tend to fright.

>!<td>just sits there but frightens novices</td>

I can be quiet, I can be loud,

>!<td>adjustable volume</td>

I hide in shame, yet am so proud.

>!<td>*not sure*</td>

I can be different, but still the same,

>!<td>multi-functional</td>

I am straightforward yet am playing games.

>!<td>operates on logic; can play various games on it</td>

you can easily find me,

>!<td>easily identifiable; conspicuous</td>

but you'd have to look and see.

>!<td>have to interact with it to get information</td>

I am found everywhere I know,

>!<td>they are globally ubiquitous</td>

but why is it sometimes not so?

>!<td>obscure subset of people wishes to stay off the grid</td>

So many things that I can make,

>!<td>programs can be written to make it do anything</td>

but how many tries will it take?

>!<td>depending on complexity, from one time to unknown</td>