2. What’s High-speed Dial-up ?
Conventional Dial-up
The connection speed of dial-up is limited by the
bandwidth of the phone line and amount of data is
getting larger and larger.
So High-speed dial-up is made for solving these
problems. The High-speed dial-up has a lot of
advantages
Five times faster than conventional dial-up service
Uses Handshake protocol
3. About Handshake Protocol and
acceleration server
Handshake Protocol
It is like a conversation between the user and server.
User Access to their ISP and uses modem handshake
and software handshake.
Acceleration server
By sandwiching it into chain between user’s dial-up
connection and web, we can get speed up the process.
4. The structure of the chain
When you send the request from the dial-up modem to
the ISP’s acceleration server, you can get and find
information or data very fast .
High-speed dial-up uses very clever ways to open up
that bottleneck.
5. File Compression
To speed up the process, high-speed dial-up provider
uses two types of file compression.
Lossy
Lossy is used for photos and graphics. It works to loss
in quality which may be not important and necessary to
the user.
Lossless
Lossless is used for text and other file. It works to
return compressed file to their original state.
6. Filtering and Caching
Filtering
Main filtering is a pop-up blocker that works to reject
not important information; e.g. ad information or pop-
up.
Caching
The caching process is that process of saving a file for
reusing when you load same page. There is no need to
download the page again for the caching.
7. The Bottom Line
The high-speed dial-up providers very
fast to connect and load than normal.
For example; CNN.com comes up
double faster with high-speed dial-up,
seventh times faster with cached
loading.
