Consider a non-interlaced raster system with resolution 1024 x1248 , and retrace rate of 40 frames per second. While displaying a frame, an electron beam spends 2 micro seconds in horizontal retrace, and 100 micro seconds in vertical retrace. Compute the fraction of the total refresh time per frame in retracing of the electron beam.

To compute the fraction of the total refresh time spent in retracing, we first need to calculate the total time it takes to display one frame.

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