Описание тега zmodem
Zmodem is a file transfer protocol of the BBS era, developed in a project funded by Telenet in order to improve file transfers on their X.25 network. It improved on earlier modem protocols and achieved wide usage.
Zmodem (or ZMODEM) is a file transfer protocol created in 1986. It was developed in a project funded by Telenet (the operators of a pre-Internet packet-switched network) in order to improve file transfers on their X.25 network. In addition to dramatically improved performance compared to older protocols, ZMODEM also offered restartable transfers, auto-start by the sender, an expanded 32-bit CRC, and control character quoting (allowing it to be used on networks that might "eat" control characters). ZMODEM became extremely popular on bulletin board systems in the early 1990s, displacing earlier protocols such as XMODEM and YMODEM.
- RFC-like spec for " The ZMODEM Inter Application File Transfer Protocol"