earliest graphics display system in your collection?

[Richard]

In article <200604200804.JAA31357 at citadel.metropolis.local>,
    Stan Barr <stanb at dial.pipex.com>  writes:

> [...]   Edsac (1949) could
> display primitive graphics on a 32x16 pixel 2-colour display.
> OXO, a Tic-Tac-Toe program by A S Douglas in 1952, displayed
> the moves graphically.  
> But I doubt if anyone in the group has an EDSAC!

Wow!  I hadn't heard of this before.  What was the display technology?
And by "2-colour" do you really mean it was a color display with
foreground and background, or do you mean it was a black and white
display with full-intensity-on and intensity-off style 'colors'?
-- 
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