[Leica] Some PDP-1 Phtos

[imra at iol.ie (Douglas Barry)]

Very interesting stuff, Herb. It's incredible how our hardware has evolved. 
Unfortunately, the basic wetware is a bit slower.

Douglas

----- Original Message ----- 
From: "Herbert Kanner" <kanner at acm.org>
To: "Leica Users Group" <lug at leica-users.org>
Sent: Friday, July 08, 2016 2:58 AM
Subject: [Leica] Some PDP-1 Phtos


> 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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