Can I leave my computer on all the time?

I just bought a Magic Jack which allows me to make telephone calls by turning my USB drive into a phone jack. However, my computer must always be on in order to receive and make phone calls. Is it harmful to my computer to leave it on all the time?

Can I leave it on 24/7 without putting it in sleep mode? Pros? Cons? Will screen saver be enough to save the monitor? Will I notice it on my electricity bill?
Barry,
Sure that's no problem. To make the change go to System Preferences - Energy Saver - Computer Sleep - Never - set the Display Sleet to the desired setting.
I'd also recommend check the box that says *Put the hard disk(s) to sleep when possible*
Pro's your problem will go away
Con's none really. you electric bill increase should be a matter of pennies, check it over the next couple of months after making the change. I've always set my iMac to this setting and find it works perfectly.
Roger

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