Xref: utzoo comp.protocols.misc:265 comp.sys.ibm.pc:15325 comp.sys.mac:15747 Path: utzoo!mnetor!uunet!husc6!ukma!gatech!ncsuvx!sam From: sam@ncsuvx.ncsu.edu (Samuel A. Moore) Newsgroups: comp.protocols.misc,comp.sys.ibm.pc,comp.sys.mac Subject: xmodem, ymodem, zmodem specs. Message-ID: <1796@ncsuvx.ncsu.edu> Date: 6 May 88 21:56:56 GMT Organization: NCSU Computing Center, Raleigh, NC Lines: 11 I am looking for specs. on the modem protocols - xmodem, ymodem, zmodem. Something that simply explains them will be okay. References to good books will be good also. I have implemented xmodem using a line monitor and a paper written by Kelly Smith, CP/M-NET "SYSOP" on January 8, 1980. I don't know where the paper came from. It does not cover ymodem and zmodem, however. Thanks.