[rescue] Vector Plotters

[Carl R. Friend]

On 10/05/2015 03:34 PM, Dave McGuire wrote:
>    While vector displays are indeed capable of continuous positioning, as
> opposed to discrete positioning, the vast majority of vector displays
> are driven from digital things, via a D/A converter.  So there are
> discrete steps in there anyway.

    Then there are the point-plotting displays like the one on the
LINC and its descendents.  In those, it's all intensified points on
the screen, and those have to be refreshed continually else the
medium-persistence phosphor fades completely out.  But that's off-
topic here other than pointing out that there is more than one way
to skin a cat.

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