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Re: parallel card



On 12 Oct 1999 05:39:51 GMT, supertimer@aol.com (Supertimer) wrote:

>The reason graphics programs demand more of the interface
>is pretty evident if you think about it.  In a text mode program,
>each character is zapped across.  In a graphics mode program,
>each pixel takes as long to zap across as a character in a
>text mode program.  That means a graphics mode printed
>page is many megabytes in size while the text mode printed
>page is only several kilobytes in size.

Not quite.  When printing graphics you are still sending 8 bits of
data at a time so if you are printing in black and white, you are
sending 8 pixels at a time.  However, you are correct that there is
more information being transferred.

I wouldn't say pages are megabytes in size, otherwise Express would be
eating up all my boot hard drives space whenever I printed something
with it.  :-)

If the transfer rate of a parallel and serial connection are the same
then the parallel connection will take one eighth the time to transfer
the data.  This is still a significant time savings regardless of
whether you are transferring a kilobyte or a megabyte.

However, the biggest bottleneck with printing any document through any
interface to any printer is the speed at which the printer can
actually print the document.

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