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System having 8 MB of video memory for bit mapped graphics with 64 bit color what is max resolution can support
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One pixel requires 64 bit = 8 bytes.

So, total no. of pixels = 8MB / 8B = 1M.

Resolution gives the no. of pixels in horizontal as well as vertical direction. Normal screens have aspect ratio 4:3 and wide screens have 16:10. Since aspect ratio is not given, we can assume 1:1 for simplicity.

So, max resolution supported = 1024 * 1024 (√1M = 1024).
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thanks

will u plz tell me how the 3rd line execute ?

what is the reason for 3rd line ?
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Added..
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options in this question were

a)800x600  b)1024x768  c)1280x1024 d)1920x1440

so can we choose c here
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