US Robotics 3CP5613 User Manual page 58

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
G
LOSSARY
ability to recover from a partially complete transfer, an autostart feature,
and improved efficiency.
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