[Leica] Some PDP-1 Phtos

[Douglas Sharp]

Hi Herbert,

L100038  is pure science fiction!

I worked with later PDPs for a couple of decades in the 
office and in the field (seismic surveying). Amazingly 
robust machines. The last ones we had were relegated to 
the menial task of reading seismic data from tapes and 
cartridges - rather sad: my company was planning to 
build the first mobile, truck-based seismic acquisition 
and processing suite around them in the mid-seventies, 
but the guy in charge couldn’t get his act together.

Cheers
Douglas

On 08.07.2016 03:58, 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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