Path: utzoo!attcan!uunet!cs.utexas.edu!csd4.milw.wisc.edu!leah!rpi!batcomputer!cornell!rochester!rit!tropix!moscom!ur-valhalla!uhura.cc.rochester.edu!sunybcs!rutgers!mailrus!tut.cis.ohio-state.edu!ucbvax!obsolete.UUCP!nazgul From: nazgul@obsolete.UUCP (Kee Hinckley) Newsgroups: comp.sys.apple Subject: Re: ZMODEM/EASYLINK Message-ID: <8906180052.AA20316@obsolete.UUCP> Date: 22 Jul 89 00:52:56 GMT References: Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 24 > support "ZMODEM" protocol. Can anyone on the net fill me in on > the advantages of this protocol? I also read in the A2 > Roundtable that this protocol doesn't work with any current > terminal software for the Apple //. Does anyone have any idea on > who IS going to support it? I've heard ZMODEM as being touted (sp?) as very fast because it doesn't require acking the packets. You only nak ones that don't make it correctly. If true this would make it much faster on high speed modems that have problems with turnaround (Telebit T1000 for instance). However it would also give Apple ][s problems because disk accesses turn off interrupts, and you would lose characters. Maybe you could get around this, but you'd probably have to deal with losing packets and resending them every time you wrote a bunch to the disk. Home: obsolete!nazgul@bloom-beacon.mit.edu Work: nazgul@apollo.com BBS: obsolete!pro-angmar!nazgul@bloom-beacon.mit.edu or nazgul@pro-angmar.cts.com (somewhat slower though) 617/641-3722 (300/1200/2400) -------