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Posted by Richard Crowley on 10/13/21 11:46
"Martin Heffels" wrote ...
> Next step in the development of these drives would be a
> model which has a 10 second buffer, so the drive can spin
> down to save power, and when you forget to switch it on,
> it simply records to memory, boots up the drive, and then
> starts dumping.
That is the scheme used by Apple's iPod when playing music,
except that the buffer is several minutes. Since it takes more
power to spin up the disk from rest than it takes to keep it
spinning, there is a tradeoff between how often you must spin
it up. I suspect that it is significantly longer than 10 seconds
for either audio or video. Note that the video iPod disc runs
continuously when playing video (thus the significantly shorter
battery run-time).
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