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XMODEM$94649$ - translation to spanish

XModem; XMODEM

XMODEM

protocolo XDODEM, viejo protocolo para la transmisión de datos entre dos ordenadores conectados por modem

Definition

XMODEM

<communications> Ward Christensen's file transfer protocol, probably the most widely available protocol used for file transfer over serial lines (e.g. between modems). XMODEM uses 128-byte packets with error detection, allowing the receiver to request retransmission of a corrupted packet. XModem is fairly slow but reliable. Several variations have been proposed with increasing packet sizes (e.g. XMODEM-1K) and different error detection (CRC instead of checksum) to take advantage of faster modems. Sending and receiving programs can negotiate to establish the best protocol they both support. John Mahr wrote the original XMODEM CRC error correction code. This implementation was backward compatible with Christensen's original checksum code. It improved the error detection from 98% to 99.97% and improved the reliability of transmitting binary files. Standard XMODEM specifies a one-second timeout during the reception of characters in the data block portion of a packet. Chuck Forsberg improved upon XMODEM by developing YMODEM and ZMODEM. [Chuck Forsberg, "XMODEM/YMODEM Protocol Reference"]. (2005-09-16)

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Wikipedia

Xmodem

XMODEM es el protocolo de transferencia de archivos más antiguo, desarrollado en 1977 por Ward Christensen a modo de apaño rápido para utilizarse con su programa de terminal MODEM.ASM, y posteriormente cedido para su uso público, por lo cual este protocolo también es conocido como “protocolo Christensen”. Se trata de un protocolo de transferencia muy sencillo de implementar que gracias a ello alcanzó gran popularidad. Actualmente, la mayoría de los módems soportan aun este protocolo.

Chuck Forsberg recopiló una serie de modificaciones comunes para su propio protocolo YMODEM, pero una deficiente implementación provocó una mayor fractura antes de la reunificación de los dos en el nuevo protocolo ZMODEM. Este último protocolo se volvió muy popular, pero nunca consiguió reemplazar por completo al protocolo XMODEM en el mercado BBS.

https://es.wikipedia.org/wiki/Xmodem