well i don't know if anyone can clear it up 100% for you, there are a few issues involved.
A) hardware can handle being left on for basicly as long as you wat.
my internet server is up for approx 2-3 months between reboots. i know that mates of mine have had their computers running stably for similar periods
B) software cannot always handle being left on without reboot, windows XP can become unstable after long periods of use as it is crap at clearing out unused stuff. but can be left on with no problems for some periods, i also know many people that have had WinXP running for months without problem. Linux can be left on almost indefinatly.
C) Power consumption, computers will consume power when being left on, but will not if left off. makes sense right
D) Noise, i turn mine off every night to sleep, basic fact is i would leave it on like my dad leaves his on all the time if it wern't in my room.
E) stress of being turned off and on, the stress of startup on components is not zero, shutting down and starting up involves spinning discs up to full speed, spining fans up to full speed, and putting a load on the power suply.
F) leaving a PC on with fans running all the time will fill the case up with dust.
basicly its damn funny. nomatter what you do there is a consequence, most of these issues will happen over periods of years and the problems would arise long after the usefullness of your computer has run out. bascily by the time anything happens your computer will be obsolete EITHER WAY you do it.
on one hand you have potential dust build up, overheating, and power useage from leaving it on, on the otherhand you have potential mechanical failure from turing it on and off all the time but you will have a more stable OS.
neither of these issues is that big a deal, and its up to the individual as to what they prefer to do.
i cleaned out my brothers old PC after dust build up. (obsolete PC by the time i did)
thats all the problems with it being left on.
but HDD failure is a bit more serious if its important (thn again it should be obsolete by the time it dies, we got a 4Gb HDD that is still going after rather a bad life LOL)
Alltaken
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