Fractals on the real thing

My RT-11 boot disk with DECUS C worked a treat on the real machine.  It took 16 seconds for it to draw the mandelbrot set in ASCII art on the actual uPDP-11/53.  Here is a picture of the real thing in action:

ASCII fractal on a real PDP-11

I would say that's a result.  My next project is to use memory-mapped I/O in C to communicate over the second serial line.  This may allow me to hook the PDP to my serial-to-wifi board.

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