Follow Slashdot stories on Twitter

 



Forgot your password?
typodupeerror
Check out the new SourceForge HTML5 internet speed test! No Flash necessary and runs on all devices. ×

Comment Re:Only makes things worse (Score 1) 248

The telcos used lead-acid batteries as a filter for the line in addition to back-up. If you have an analog signal riding on top of a constant current source like with POTS, you need an *extremely* stable DC level or else people will hear buzzing. For a very long time (and maybe even now), the cheapest and easiest way to do this was to run the whole system off batteries.

So I think this could be classified as "good business sense", though for reasons completely unrelated to reliability.

Slashdot Top Deals

Can anyone remember when the times were not hard, and money not scarce?

Working...