JP Vossen on 29 Jan 2010 13:43:57 -0800

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Re: [PLUG] no moving parts

> Date: Fri, 29 Jan 2010 14:16:19 -0500
> From: Richard Freeman<>
> Subject: Re: [PLUG] no moving parts
> On 01/29/2010 01:14 PM, JP Vossen wrote:
>> I can imagine a computer with no moving parts though.  Use a projector
>> for the display, and a laser/LED projection with an IR sensor for a
>> keyboard (I'm pretty sure I read about that one already).
> Are you sure that laser/LED projector doesn't have any moving parts
> (like a rapidly oscillating mirror)?

I was hoping no one would call me on that part either.  But I'm going to 
claim ignorance of how those really work.

> In any case, a computer requires neither a display, nor a keyboard.

True, I should have specified a general purpose end-user 
workstation-like computer.  Similar in function but not form to a laptop.

> However, manual input-output isn't really a problem.  The display is
> already easy, and for input just have an array of photodiodes shaped
> like a keyboard that you can point your flashlight at.  Actually, if you
> wanted to be really clever just type on them, and have the keyboard
> register the blocking of ambient light as each "button" is pressed.

Yeah, that's what I mean.  Ambient, IR, whatever.  The flashlight thing 
is too cumbersome, I want a full-size QWERTY keyboard.  OK, tactile 
feedback will not exist, but otherwise...
This is the one I was thinking of:

The first generations would be just a chunk of plastic you sit on the 
desk and it does the display and keyboard.  Later generations would be 
even more "wearable" once the holographic I/O devices are sorted out. 
Assuming the neural interfaces don't beat them to the punch.

Either way, we end up here:

> Of course, this only qualifies as a computer with no moving macroscopic
> parts.  Once you start counting electrons and photons...  Then again, if
> electrons and photons do not occupy any particular discrete region of
> space, can they really be said to move?  :)

Oh Bog, why me?!?  Look, as long as we don't actually LOOK for them, 
who's to know?

JP Vossen, CISSP            |:::======|
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