"Caveat Lector" ) writes:
Used to be two ratings for computers -- one was a low radiation type
Can't find it on Google

People have already mentioned the class A and class B ratings, which I
think you are referring to. I have no idea if it's still in place, or
people are working from memory.

My memory says the stuff rated for business was less stringent, and if
that's a proper memory, I always thought it was because at home one is
surrounded by consumer devices like radios and tv sets, and the likelihood
of interference to those devices is high, hence higher standards.

Michael

Also Laptops offer a means of good shielding and several are low noise

And if you search the web - you can find several tips as how to quiet down
your computer

Try URL:
http://www.ac6v.com/comprfi.htm

CL