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     áòèé÷ :: Filmscanners
Filmscanners mailing list archive (filmscanners@halftone.co.uk)

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Re: filmscanners: Importance of Copyright on Images



Austin writes:

> Please show proof of a "common" (or any for
> that matter) 5k+ modem from 30 years ago.

The usual practical achievable speed today is about 33K bps.  Thirty years ago,
it was about 2400 bps over slightly conditioned lines, and 1200 bps over
unconditioned lines, a difference of about 30:1.  Unfortunately, the need for
bandwidth has expanded far more quickly than the capacity of ordinary modems,
which is why broadband is gaining in popularity.

> 30 years ago, modems were barely 110 baud,
> and they were not modems, they were acoustic
> couplers.  30 years ago is 1971.

Hardwired modems existed in 1971, and even before.  They were not widely used
because the Bell System wouldn't allow it.




 




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