Many of us spend a sizable portion of our waking hours at or near our computers, whether it’s for work, socializing, or entertainment. Practically the only time we’re not using a computer, it seems, ...

Turning a computer off or putting it to sleep may be a matter of personal preference or habit. It's faster to close a laptop's lid or have a desktop enter sleep than shutting down either type of PC.

Leaving your PC on 24/7 only costs around $15 extra per year on a high-end system, and even less for lower-power machines. Productivity gains from leaving your PC on outweigh the potential cost ...