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The hare racing
the tortoise
The fast data
connection that broadband offers can exceed 1 megabits per
second (Mbps). Analog telephone wires, on the other hand, are
only capable of transmitting a potential top speed of 64 Kbps.
This top speed is not achieved because of numerous environmental
factors,
like: the quality of the copper wires used, inherent line noise
(telephones convert audio to electrical signals before being
sent to the receiver,
which converts it back to audio, the biggest source), data
compression issues, and outdated equipment at telephone exchanges. Broadband connections,
with the exception of DSL that uses the same wires as the telephone,
use a dedicated method of delivery optimized
for data transmission. This all adds up to speed.
By
the numbers
Comparing the
two connection types, Broadband and Dial-up:
features |
dial-up |
broadband |
availability |
ubiquitous |
limited |
access
initialization |
dialing
into isp |
none;
always on |
theoretical
top speed |
56.6Kbps |
1,000
- 11,000Kbps |
real-world
top
speed |
48Kbps |
900
- 10,500Kbps |
%
loss to transmission |
15
- 25% |
5
- 15% |
streaming
media access |
poor |
good
- excellent |
average
cost |
£10+/month |
£18+/month |
protocol |
analog |
digital |
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