[Leica] Some PDP-1 Phtos

Jim Nichols jhnichols at lighttube.net
Thu Jul 7 20:00:07 PDT 2016


Thanks, Herb.  That's much more primative

Jim Nichols
Tullahoma, TN USA

On 7/7/2016 8:58 PM, Herbert Kanner wrote:
> Granted, not as sexy as airplanes, but thats to what I have access>
>
> 1. Front view of computer.
> http://gallery.leica-users.org/v/herbk1/L1000046.jpg.html <http://gallery.leica-users.org/v/herbk1/L1000046.jpg.html>
>
> 2. Close up of control panel
> http://gallery.leica-users.org/v/herbk1/L1000041.jpg.html <http://gallery.leica-users.org/v/herbk1/L1000041.jpg.html>
>
> 3. Display unit, light pen, and typewriter. The light pen was common
> before the mouse became popular. A fiber optic cable runs from the hand-held
> device to a photo-multiplier (very sensitive light detector). Because the display unit scans and can plant a dot every microsecond, the time of day when the pen sees light tells the computer the coordinates of where it is pointing.
> http://gallery.leica-users.org/v/herbk1/L1000038.jpg.html <http://gallery.leica-users.org/v/herbk1/L1000038.jpg.html>
>
> 4. View of the cabinets from the side. As I said before, about the size of three refrigerators paced side by side.
>
> Please look large.
>
> Herb
>
>
> Herbert Kanner
> kanner at acm.org
> 650.208.9417
>
> Question authority and the authorities will question you.
>
>
>
>
>
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> Leica Users Group.
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>



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