Computers and the Cold

Last night I was watching the news and they mentioned that it is so cold that people are starting to have water pipes freeze in their homes. There's nothing like a news story about water damage to make you get up at 10pm to run around and check all your pipes.

I know it has been cold because my office is in my basement and it doesn't really have insulated walls. Instead I have covered the concrete with posters, flags, and other coverings to give it a warmer feel. I have a heating vent in my office but have decided it doesn't really do much. Normally my office is about 65 degrees. Lately it has been down at 61 and so I know it has been cold. This morning I came in and it was 59.

My office is great in the summer. As I mentioned before, the temperature is normally about 65 degrees and that includes during the summer. When it gets really hot outside, my office might get up to 70 degrees, but usually not much warmer. This morning it was just too cold and so I turned on an electric space heater I keep in my office for such occasions.

Those that have been to older computer installations know that they generally keep computer rooms at about 65 degrees. This is because those old computers really put out the heat and it is necessary to keep the ambient temperature relatively lower than usual or the computers would overheat.

This got me thinking about my days back in college when I was studying electrical engineering. One of the first things we learned was that electrons travel faster at colder temperatures. Following that logic, you would want to keep your computer as cold as possible so it can run faster. Unfortunately that is not the reason to keep those old computers cold. Transistors switch slower at colder temperatures. Seeing as your computer is just a bunch of electrical switches (billions of them, actually), you don't want to make your computer too cold or it starts to slow down.

Nope the real reason to keep those old computers cold is that transistors start to do funny things when they get to hot. Since computers think in terms of binary numbers or ones and zeros, zeros can become ones or visa versa if the computer gets too hot. The same thing happens when the computer gets too cold. That is why all computers come with a temperature operating range.

Realistically the chances of you using your computer outside the suggested temperature range is pretty minimal. For an Apple Mac, this is between 50 and 95 degrees Fahrenheit. Unfortunately the same thing cannot be said about the operator. I seem to think a lot better at 70 degrees than I do at 60. Perhaps my operating temperature range is a bit more narrow than my computers'.