G
LOSSARY
7-7
uses the digital telephone network to increase the
bit rate
of the receive
channel by eliminating the analog to digital conversion commonly found in
modem connections. V.90 connections require a modem with V.90 or
x2
technology
calling a digitally connected
Internet Service Provider
or
corporate host site compatible with V.90 or
x2 technology
.
World Wide Web
A part of the
Internet
designed to allow easier navigation of the network
through the use of graphical user interfaces and hypertext links between
different addresses.
x2 Technology
3Com’s trademark for its proprietary technology that uses the digital
telephone network to increase the
bit rate
of the receive channel by
eliminating the analog to digital conversion commonly found in modem
connections. x2 connections require a modem with x2 technology calling a
digitally connected
Internet Service Provider
or corporate host site
compatible with x2 technology.
Xmodem
The first of a family of
error control
software
protocols
used to transfer
files between modems. These protocols are in the public domain and are
available from many bulletin board services.
XON/XOFF
Standard
ASCII
control
characters
used to tell an intelligent device to
stop/resume transmitting data.
Ymodem
An error-checking
protocol
that can send several files of data at a time in
1024-
byte
(1K) blocks. This protocol can use either checksums or
CRC
for
error checking.
Ymodem G
Similar to
Ymodem
, except it includes no error checking, which makes it
faster.
Zmodem
Similar to
Xmodem
and
Ymodem
, except it includes batch transfer, the
ability to recover from a partially complete transfer, an autostart feature,
and improved efficiency.
Summary of Contents for 3CP5613
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