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The standard that came after CGA and before VGA. It allowed resolutions up to 640x350 pixels and 16 colors from a palette of 64. It was soon replaced by VGA. EGA images look squished because the aspect ratio of 640x350 is not flattering compared to the more standard 640x480 resolution of VGA that corresponded exactly to the 4:3 aspect ratio of most computer monitors.
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EGA - On 2003-11-24 floyd@barrow.com said:"BoB" wrote:"Floyd Davidson" wrote in messagenews:874qwuy6q0.fld@barrow.com... "BoB" wrote:So the S/N ratio is a cruddy/non quatitative measure dependentupon >protocols(and chipsets), about what I would have guessed!Thanks for the enlightenment!Modem technology still has a long row to hoe!snipped and resumedThe first thing we need to understand is that it has *nothing*to do with with modem technology or standards. *NOTHING*. Itis a simple matter of which part of a telephone connection isused, and what that part should be expected to have for a SNR.have one standard for V34, another for V90 and then seperatestandards for different chipsets,(rckwl/cnxt, usr/ti,lucent/agrere, etc).A few diagrams might help make clear what is happening. Thefirst one is a block diagram of a v.34 connection between twomodems.snipped and resumedThis "quantization noise" is 37 dB less than the signal thatcauses it. (I'd be happy to explain why it is 37 dB rather thansome other number, but it is complex and would require anarticle twice the size of this one.)Many thanks for the excellent dissertation in your post. As to the abovepara .. if you have both the time and the inclination I for one would bemost interested in learning why 37 dB is the magic number as complexas the explanation may be.RegardsDon BlackNet-Tamer V 1.12.0
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