No.

14) Does it make sound?

Nope.

(15) Does it [b]not[/b] [strike]have[/strike] need batteries or work?

[size=1]Asking in negative sense in hopes of getting a "yes".[/size]

Yes and no, doesn't really matter where the power comes from, frequently used in battery and non-battery powered modes.

[QUOTE=lavalamp;235585]Yes and no, doesn't really matter where the power comes from, frequently used in battery and non-battery powered modes.[/QUOTE]
So it's correct that it does not need batteries. It would seem to me that retina is entitled to the next question. Or does anyone disagree?

Previous 'yes and no' answers have counted as 'yes' so, fine with me.

[QUOTE=lavalamp;235543]The answer to that is a hard one. Like I said they are everywhere, but I suppose most of them are "connected" to computers when in use, yes.[/QUOTE]So, not an electric toothbrush.

Also, not an electric power cord (too many not connected to computers), but could be some other type of connecting device ... something else that has electricity running through it but doesn't "do" all that much (no sound, light, entertainment, food prep).

lavalamp's use of air quotes around [I]connected[/I] in answering #12 may hint that the connection is electromagnetic rather than physical ... but maybe that was for some other reason, such as intermittent connection, or a less direct connection than we ordinarily think of.

From #13, it might have either a single-control user interface, or no user interface at all.

Not an A/B switch, because they're not "bloody everywhere" (and not often in a battery-power situation).

my next question would be "is it normally part or a (or an entire) computer", or I would try to narrow down the the price of such an object.

(16) Do other devices use this thing to connect to each other?

[QUOTE=cheesehead;235610]such as intermittent connection[/QUOTE]Or the opposite of that.

[QUOTE=retina;235618](16) Do other devices use this thing to connect to each other?[/QUOTE]No.