You can
put this solution on YOUR website!1600 x 1200 resolution means that there are 1600 times 1200 pixels in each frame. And each pixel requires x bits. That means that each frame requires storage for 1920000 times x bits of information. Now we also know that 26 frames are recorded per second and that there are 60 seconds in a minute. So one minute of recording would require 60 * 26 * 1920000 * x bits or 2995200000x bits per minute (bpm).
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An 80GB hard drive has 80 billion bytes of storage capacity. A byte is 8 bits. The normal meaning of billion is
, but when you are talking about computer storage, a kilobyte is actually 1024 bytes because everything is based on powers of 2. So a gigabyte is actually
and 80 times that is 85,899,345,920 bytes. The total storage capacity in bits is then 8 times that or 687,194,767,360 bits.
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So our relationship is
or with our numbers:
:
for x = 32,
:
If your instructor wants you to use the standard definition of a billion, then change the numerator of the fraction to 8 * 80 * 1,000,000,000 = 640,000,000,000 and your answer should be a little over 6.6 minutes.
