Patrick Ford said,
> On 17-Feb-00, Neil Bothwick wrote:
>> Everything. ISDN is like normal telephony, except that it uses digital
>> signals. Cablemodem doesn't use the telephone system at all but a
>> digital cable with a direct connection. The term cablemodem is totally
>> misleading since it has nothing to do with modems, which are only use
>> for analogue telephone connections.
> Thanks. Is the so called cable modem simply an ethernet card?
No, but it connects to an ethernet card. The IP traffic is carried on
the same cable as TV and telephony information, so the "cablemodem" is
used to extract the data packets.
> What speeds can be achieved through both, and how much advantage is
> there when the rest of the net seems to be bogged down with traffic
> jams?
Current cablemodems are capable of at least 2Mb/s, although most
companies restrict the service to somewhere between 0.5 and 1.5MB/s.
More important is the bandwidth from the local access point to the rest
of the net, since this is shared by all users on the local loop.
If digital content delivery is to become a reality, bandwidth will have
to be increased in all areas, but the major advantage of cablemodems
(and ADSL) for now is that they are a permanent connection.
Neil
--
Neil Bothwick - New Media Editor, Amiga Active Magazine
Connected via Wirenet - http://www.wire.net.uk
The UK's first Amiga-only internet access provider
--
(A)bort (R)etry (S)ell it
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