Filmscanners mailing list archive (filmscanners@halftone.co.uk)
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: filmscanners: Importance of Copyright on Images
Tom writes:
> There were not 2400 baud modems in 1971.
The Bell System leased Dataphone modems with speeds up to 2400 bps from the
early 1960s, almost a decade earlier, if my distant memory serves. I found a
reference to Multics systems using such modems, presumably in that decade. So
there were 2400-bps modems by 1971, although they were not common, and they
certainly were not cheap.
Not everyone used acoustic couplers (which cannot support speeds above 300 bps,
as far as I know). Modems had to be hardwired to subscriber lines to support
higher speeds (Bell would not allow modular plug-in modems, so this was a
political restriction, not a technical one).
|
