- 2082 Kartik (new course) · 3 marks
Time to display a pixel
Short answer
Total pixels per second = 1024×768×60 = 47,185,920. Time to display one pixel = 1 / 47,185,920 ≈ 21.2 ns.
Calculate the time required to display a pixel on the monitor of size 1024 × 768 with refresh rate of 60 Hz.
The screen is refreshed 60 times per second, and each refresh must access all pixels.
Pixels per frame = 1024 × 768 = 786,432
Pixels per second = 786,432 × 60 = 47,185,920
Time per pixel = 1 / 47,185,920 s
= 2.119 × 10⁻⁸ s ≈ 21.2 ns
Answer: about 21.2 ns per pixel (retrace time ignored).
✓ Answer checked by Claude Opus 5.5 (high effort)
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