[net.micro] Delphi

leichter@yale-com.UUCP (Jerry Leichter) (06/02/83)

The echoing properties you refer to in your article - long delays to echo
single characters, but good throughput on long type-out - are not properties
of Delphi, or their system, but rather of Telenet, Tymnet, and related packet-
switching terminal interconnect systems.  (When you are typing, each character
has to be embedded in a packet and transmitted; then the same has to happen
with the echoed character.  There may even be a built-in delay at the trans-
mitter that waits a while - from may experience, maybe .2 seconds, given overall
turn-around of anywhere from .25 to .5 seconds - in an attempt to build a packet
with more than just on character in it.  On typeout, large packets are sent;
there is a delay to get typing started, but once large packets begin streaming
down the link to you, the system is fast enough - >=1200 baud average - to
give you continuous output.)  Such systems are a pain to use for editing -
believe, I KNOW; ugh! - but are VERY cheap compared to phone links.
								-- Jerry
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