On 4 Sep 96 12:00am, Don Nickell wrote to Frederick Sohn:
 DN> Old habits die hard. I've been in electronics for some 30 years 
 DN> and know it's better to leave things on, and did at work. Even 
 DN> vacuum tubes last longer if left on 24 hours a day, but with 
 DN> plate voltage off after hours. Then I think about the HD 
 DN> whirling for 24 hours, and possibility of fire, and turn things 
 DN> off when done.
In the case of hard drives, leaving them spinning reduces stress on
the drive motor and bearing.  I leave my system at home, which I use
daily, on all the time (but for the monitor) and leave that at work
on overnight through the week, turning it off Friday evening for the
weekend.
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