Question

1.4 A hand-held video player displays 480×320 picture elements (pixels) in each frame of the video. Each pixel requires 2 bytes of memory. Videos are displayed at a rate of 30 frames per second. How many hours of video will fit in a 32 gigabyte memory?

Answer 1

Answer:

0.965 hour

Explanation:

1 frame of video = 480×320 pixels = 480×320×2 bytes = 307,200 bytes

In 1 sec (1/3600 hour) 30 frames of video are displayed which will occupy 30×307,200 bytes = 9,216,000 bytes

Number of hours of video that will fit in a 32 gigabyte (32×10^9 byte) memory = (32×10^9)/(9,216,000×3600) = 0.965 hour