1/* Courtesy of Ian Darwin <ian@darwinsys.com> 2 * and Geoff Collyer <geoff@plan9.bell-labs.com> 3 * Mildly updated by Ian Darwin in 2000. 4 */ 5digraph unix { 6 size="6,6"; 7 node [color=lightblue2, style=filled]; 8 "5th Edition" -> "6th Edition"; 9 "5th Edition" -> "PWB 1.0"; 10 "6th Edition" -> "LSX"; 11 "6th Edition" -> "1 BSD"; 12 "6th Edition" -> "Mini Unix"; 13 "6th Edition" -> "Wollongong"; 14 "6th Edition" -> "Interdata"; 15 "Interdata" -> "Unix/TS 3.0"; 16 "Interdata" -> "PWB 2.0"; 17 "Interdata" -> "7th Edition"; 18 "7th Edition" -> "8th Edition"; 19 "7th Edition" -> "32V"; 20 "7th Edition" -> "V7M"; 21 "7th Edition" -> "Ultrix-11"; 22 "7th Edition" -> "Xenix"; 23 "7th Edition" -> "UniPlus+"; 24 "V7M" -> "Ultrix-11"; 25 "8th Edition" -> "9th Edition"; 26 "9th Edition" -> "10th Edition"; 27 "1 BSD" -> "2 BSD"; 28 "2 BSD" -> "2.8 BSD"; 29 "2.8 BSD" -> "Ultrix-11"; 30 "2.8 BSD" -> "2.9 BSD"; 31 "32V" -> "3 BSD"; 32 "3 BSD" -> "4 BSD"; 33 "4 BSD" -> "4.1 BSD"; 34 "4.1 BSD" -> "4.2 BSD"; 35 "4.1 BSD" -> "2.8 BSD"; 36 "4.1 BSD" -> "8th Edition"; 37 "4.2 BSD" -> "4.3 BSD"; 38 "4.2 BSD" -> "Ultrix-32"; 39 "4.3 BSD" -> "4.4 BSD"; 40 "4.4 BSD" -> "FreeBSD"; 41 "4.4 BSD" -> "NetBSD"; 42 "4.4 BSD" -> "OpenBSD"; 43 "PWB 1.0" -> "PWB 1.2"; 44 "PWB 1.0" -> "USG 1.0"; 45 "PWB 1.2" -> "PWB 2.0"; 46 "USG 1.0" -> "CB Unix 1"; 47 "USG 1.0" -> "USG 2.0"; 48 "CB Unix 1" -> "CB Unix 2"; 49 "CB Unix 2" -> "CB Unix 3"; 50 "CB Unix 3" -> "Unix/TS++"; 51 "CB Unix 3" -> "PDP-11 Sys V"; 52 "USG 2.0" -> "USG 3.0"; 53 "USG 3.0" -> "Unix/TS 3.0"; 54 "PWB 2.0" -> "Unix/TS 3.0"; 55 "Unix/TS 1.0" -> "Unix/TS 3.0"; 56 "Unix/TS 3.0" -> "TS 4.0"; 57 "Unix/TS++" -> "TS 4.0"; 58 "CB Unix 3" -> "TS 4.0"; 59 "TS 4.0" -> "System V.0"; 60 "System V.0" -> "System V.2"; 61 "System V.2" -> "System V.3"; 62 "System V.3" -> "System V.4"; 63} 64