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An average person who uses a computer would usually just walk away from it when your done, or if your gone for an extended time (and they know about it in advance) they'll probably put it in sleep . I (myself) use to keep my computer on about 8 hours a day, just saying I'll comeback to it later. Well there are many ways to save electricity.
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Signing UpStep 1CRT versus LCD
Many people and businesses use CRT monitors because they might have it from an old computer and say "Hey, why buy a new monitor works just fine, I'll save money."
Facts about an average 17" monitors (using the average kwh price of 9.86 cents, you can look at the map):
CRT
1) Electricity used: 80 watts
2) Money spent keeping the monitor on for 8 hours cost about 6.4 cents per day, which adds up to 23.36 dollars a year.
3) Cheapest new I could find off of Newegg was 125 dollars.
4) They're fat and ugly and take up half of your desk (well that was an opinion)
LCD
1) Electricity used: 35 watts
2) Money spent keeping the monitor on for 8 hours cost about 2.8 cents per day, which adds up to 10.08 dollars a year.
3) cheapest new I could find off of Newegg was 150 dollars
So if you have a CRT and switch to a LCD an average would save 13.28 dollars. If you had a choice of buying the CRT and a LCD you would only lose 11.72 dollars. A cheap price to help the Earth and have more room on your desk.
Facts about an average 17" monitors (using the average kwh price of 9.86 cents, you can look at the map):
CRT
1) Electricity used: 80 watts
2) Money spent keeping the monitor on for 8 hours cost about 6.4 cents per day, which adds up to 23.36 dollars a year.
3) Cheapest new I could find off of Newegg was 125 dollars.
4) They're fat and ugly and take up half of your desk (well that was an opinion)
LCD
1) Electricity used: 35 watts
2) Money spent keeping the monitor on for 8 hours cost about 2.8 cents per day, which adds up to 10.08 dollars a year.
3) cheapest new I could find off of Newegg was 150 dollars
So if you have a CRT and switch to a LCD an average would save 13.28 dollars. If you had a choice of buying the CRT and a LCD you would only lose 11.72 dollars. A cheap price to help the Earth and have more room on your desk.
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Firstoff, a Mac Desktop is made of laptop components, so apart from a huge screen, has equal or near equal power consumption to a laptop.
Operating system does have an impact on power consumption in the loosest sense. That sense being that increased workload from any application (OS, Office, browsers, games) will result in more power drained. We know this is true because when playing a high-end game, the graphics card heats up, and the heat energy comes from electricity. Same idea on a phone (i.e. Iphone), games will make it heat up, and also drain the battery faster.
Therefore, because there are so many varieties of Linux, technically Linux will be the most power efficient because many Linux versions are built specifically to use low power. Also, Macs and Windows PCs are generally loaded with a greater amount of bloat ware which typical users do not remove, which causes increased power drain.
Finally, my computer uses a 1 kW power supply. Desktops may typically use between 60-250, but there are a significant number up to 500W and many high-end up to 1kW or more. Past comments are correct, comptuer power demand is almost entirely dependent
Windows is slow after the first 6 months. It takes longer to do the same functions, therefore more power draw. Also, CPU load is increased, which uses more power.
And OS-es doesn't have to do much with power saving, except if they are able to control the CPU voltage or something, which is not really used out.
I've personally cut back from 3 CRTs to 1 LCD. I have more space on my desk ( I HAVE desk space) and the electric meter has stopped whizzing around...
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