This is a guest post from Rick of What’s On My PC.
There has been a lot of debate over the years whether you should power down your computer daily or just leave it “on” all of the time. I’ve always been a firm believer of powering the computer”off” when finished using it at the end of the day. When I was managing a computer network, the standard I had in place required all users to power down their PC’s prior to going home. If I found a PC “on”, then I remotely powered it “off”. I still use this same practice at home. During the day, I turn the computer “on”, and all peripheral components (i.e. drives, router, etc…), via a power strip (surge protector); then, I power the computer “off” at the end of the day (prior to going to bed) or if I leave the house for an extended period of time. My theories and reasonings for this practice are as follows:
A computer that is left “on” all the time, is a potential security risk and is an open invitation internally (by other people) and externally (by hackers and such). (Especially when your network is connected to the outside world AND due to the fact the majority of people, and businesses, do not keep their security software up to date.);
Extends the life of the computer. (A common debate is that turning the PC “on” and “off” promotes a negative impact on the “service life” of the computer. I personally can attest that most computers, with today’s advanced technology, will reach the end of their “useful life” prior to their actual “service life”, even if you turn them “on” and “off” multiple times.);
Could be a potential fire hazard. (I’ve seen computers and monitors go up in smoke.);
Can save electricity. (See U.S. Department of Energy – “When To Turn Off Personal Computers“);
Refreshes the memory and the memory resident programs and services in the computer when you completely do a “cold restart” of the computer. (Many people let their PC’s go into a “sleep/standy mode” or “hibernate” mode. I still prefer what is called a “cold” restart.);
Will keep the internal components of the computer cleaner. (When a computer is “on”, the fans are pushing and pulling air to keep components cool; however, this air flow is a dust magnet.)
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What’s On My PC… – www.whatsonmypc.wordpress.com
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