Aucbvax.2258 fa.works utzoo!duke!decvax!ucbvax!works Mon Jul 13 03:35:47 1981 Re: Keystroke log / replay method of recovery >From Joe.Newcomer@CMU-10A Mon Jul 13 03:28:09 1981 Replay not new? Although we didn't do it at the keystroke level, but at the line level, this is the technique we used to handle crashes in a banking transaction system in 1966, and my boss thought it "common knowledge" then! Going to keystroke level is the obvious generalization if you're not on half-duplex... joe