At 14:12 -0500 on 20/09/01, Brian wrote:
>On Thu, 20 Sep 2001, John Teffer wrote:
>
>> >inch. Screen resolution is generally presumed to be 72 ppi.
>
>Screen resolution is 72 dpi period. It can't be changed in
<voice type=CIA guy from ID4>
That's not *entirely* accurate.
</voice>
"Screen resolution" depends on how many pixels - not phosphors - are on
your monitor and how big your monitor is.
If a monitor is displaying 640x480 pixels and has physical dimensions of
12" by 9", that's about 53x53 dpi (square pixels). If the same monitor
happens to be a multisync monitor and is then set to display 1024x768
pixels, it now has a resolution of about 85x85 dpi (also square pixels).
"Screen resolution" means that there are x number of pixels across and y
number of pixels down in one square inch of physical screen area. Macs
traditionally used 72 dpi square pixels to make WYSIWYG possible - it's a
lot easier to know what's going on if an inch on the screen corresponds to
an inch on the paper.
p
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