digraph tree { rankdir=LR
page="12,17"
overlap=true
graph [fontsize=8]; edge [fontsize=8]; node [shape=plaintext fontsize=8];
ranksep = 0.2; nodesep = .04;
AST01 [label="AST.01" fontname="Helvetica" fontcolor="red" shape=plaintext height=0 pos="700,0" URL="http://stackosaurus.com/misc/Forth_AST.01.pdf" tooltip="Authors: Forth Astronomical Users Group"];
Forth77 [label="Forth-77" fontname="Helvetica" fontcolor="red" shape=plaintext height=0 pos="700,0" URL="http://www.complang.tuwien.ac.at/forth/forth-77.txt" tooltip="Authors: European FORTH Users Group"];
AST01  -> Forth77 [weight=100]
Forth78 [label="Forth-78" fontname="Helvetica" fontcolor="red" shape=plaintext height=0 pos="800,0" URL="http://forth.org/OffeteStore/1003_InsideF83.pdf" tooltip="Authors: Forth Standards Team"];
Forth77  -> Forth78 [weight=100]
Forth79 [label="Forth-79" fontname="Helvetica" fontcolor="red" shape=plaintext height=0 pos="900,0" URL="http://www.complang.tuwien.ac.at/forth/standards/Forth-79.pdf" tooltip="Authors: Forth Standards Team"];
Forth78  -> Forth79 [weight=100]
Forth83 [label="Forth-83" fontname="Helvetica" fontcolor="red" shape=plaintext height=0 pos="1300,0" URL="http://forth.sourceforge.net/standard/fst83/index.html" tooltip="Authors: Forth Standards Team"];
Forth79  -> Forth83 [weight=100]
Forth94 [label="ANS Forth" fontname="Helvetica" fontcolor="red" shape=plaintext height=0 pos="2400,0" URL="http://www.complang.tuwien.ac.at/forth/dpans-html/dpans.htm" tooltip="Authors: X3J14 TC"];
Forth83  -> Forth94 [weight=100]
Forth2012 [label="Forth-2012" fontname="Helvetica" fontcolor="red" shape=plaintext height=0 pos="4400,0" URL="http://forth-standard.org" tooltip="Authors: Forth 200x Committee"];
Forth94  -> Forth2012 [weight=100]
Forth [fontname="Helvetica" shape=plaintext height=0 pos="100,0" URL="http://www.forth.com/resources/evolution/evolve_1.html" tooltip="Chuck Moore's Language"];
Forth  -> AST01 [weight=10 color="green"] 
miniFORTH [fontname="Helvetica" shape=plaintext height=0 pos="300,0" URL="http://www.forth.com/resources/evolution/evolve_2.html#2.2" tooltip="Chuck Moore's Language as Forth Inc. product"];
Forth  -> miniFORTH [weight=100]
microFORTH [fontname="Helvetica" shape=plaintext height=0 pos="700,0" URL="http://www.forth.com/resources/evolution/evolve_2.html#2.3" tooltip="Author: Dean Sanderson @ Forth, Inc."];
miniFORTH  -> microFORTH [weight=100]
figForth [label="fig-Forth" fontname="Helvetica" shape=plaintext height=0 pos="800,0" URL="http://www.eforth.com.tw/academy/library/figforth.htm" tooltip="Authors: Robert Selzer, Bill Ragsdale, and others"];
microFORTH  -> figForth [weight=100]
Forth78  -> figForth [weight=1 color="red"]
F83 [fontname="Helvetica" shape=plaintext height=0 pos="1300,0" URL="http://www.eforth.com.tw/academy/library/insidef83%5Crootsf83.htm" tooltip="Authors: Henry Laxen and Mike Perry"];
Forth83  -> F83 [weight=1 color="red"]
figForth  -> F83 [weight=10 color="green"] 
polyFORTH [fontname="Helvetica" shape=plaintext height=0 pos="1000,0" URL="http://www.forth.com/resources/evolution/evolve_3.html#3.2" tooltip="FORTH, Inc.'s PC offering"];
miniFORTH  -> polyFORTH [weight=100]
polyFORTH_II [label="polyForth II" fontname="Helvetica" shape=plaintext height=0 pos="1200,0" tooltip="https://www.computerhistory.org/collections/catalog/102640347"];
polyFORTH  -> polyFORTH_II [weight=100]
Forth83  -> polyFORTH_II [weight=10 color="green"] 
chipFORTH [fontname="Helvetica" shape=plaintext height=0 pos="1500,0" URL="http://www.computer-solutions.co.uk/chipdev/cf.htm" tooltip="Cross-development environment by Forth, Inc."];
microFORTH  -> chipFORTH [weight=10 color="green"] 
polyFORTH_II  -> chipFORTH [weight=100]
SwiftForth [fontname="Helvetica" shape=plaintext height=0 pos="2600,0" URL="http://www.forth.com/swiftforth/index.html" tooltip="Native-code, ANS Forth from Forth, Inc."];
Forth94  -> SwiftForth [weight=1 color="red"]
polyFORTH_II  -> SwiftForth [weight=100]
SwiftX [fontname="Helvetica" shape=plaintext height=0 pos="2700,0" URL="http://www.forth.com/embedded/index.html" tooltip="Native-code, cross-development environment"];
chipFORTH  -> SwiftX [weight=10 color="green"] 
SwiftForth  -> SwiftX [weight=100]
STOIC [fontname="Helvetica" shape=plaintext height=0 pos="500,0" URL="http://hopl.murdoch.edu.au/showlanguage2.prx?exp=2537" tooltip="by Jonathan Sachs for DG Nova"];
Forth  -> STOIC [weight=10 color="green"] 
LSE [fontname="Helvetica" shape=plaintext height=0 pos="800,0"];
STOIC  -> LSE [weight=10 color="green"] 
magicl [label="MAGIC/L" fontname="Helvetica" shape=plaintext height=0 pos="800,0"];
STOIC  -> magicl [weight=10 color="green"] 
MVPForth [label="MVP-Forth" fontname="Helvetica" shape=plaintext height=0 pos="1000,0" URL="http://theforthsource.com/history.html" tooltip="public domain implementation of Forth-79, Roy Martin et al."];
Forth79  -> MVPForth [weight=1 color="red"]
vicforth [label="VIC Forth" fontname="Helvetica" shape=plaintext height=0 pos="1200,0" URL="http://ftp.funet.fi/pub/cbm/vic20/programming/VIC-Forth/index.html" tooltip="by Tom Zimmer"];
figForth  -> vicforth [weight=100]
hes64forth [label="64 Forth" fontname="Helvetica" shape=plaintext height=0 pos="1300,0" URL="ftp://ftp.forth.org/pub/Forth/Compilers/native/misc/commodore64/    " tooltip="by Tom Zimmer"];
vicforth  -> hes64forth [weight=100]
c64forth79 [label="C64 FORTH/79" fontname="Helvetica" shape=plaintext height=0 pos="1300,0"];
Forth79  -> c64forth79 [weight=1 color="red"]
blazinforth [label="Blazin' Forth" fontname="Helvetica" shape=plaintext height=0 pos="1500,0" URL="ftp://ftp.forth.org/pub/Forth/Compilers/native/misc/commodore64/" tooltip="(C) Scott Ballantyne    "];
Forth83  -> blazinforth [weight=1 color="red"]
forthcargile [label="Forth (Cargile&Riley)" fontname="Helvetica" shape=plaintext height=0 pos="1200,0"];
figForth  -> forthcargile [weight=100]
Forth79  -> forthcargile [weight=1 color="red"]
superforth64 [label="Super Forth 64" fontname="Helvetica" shape=plaintext height=0 pos="1300,0"];
MVPForth  -> superforth64 [weight=100]
tinyforth64 [label="Tiny FORTH-64" fontname="Helvetica" shape=plaintext height=0 pos="1300,0"];
figForth  -> tinyforth64 [weight=100]
triforth [label="Tri FORTH" fontname="Helvetica" shape=plaintext height=0 pos="1300,0"];
figForth  -> triforth [weight=100]
UNIFORTH [fontname="Helvetica" shape=plaintext height=0 pos="1400,0"];
Forth79  -> UNIFORTH [weight=1 color="red"]
sixtyforth [label="Sixty FORTH" fontname="Helvetica" shape=plaintext height=0 pos="1400,0"];
figForth  -> sixtyforth [weight=100]
whitelightning [label="White Lightning" fontname="Helvetica" shape=plaintext height=0 pos="1400,0"];
figForth  -> whitelightning [weight=100]
forth64 [label="Forth-64" fontname="Helvetica" shape=plaintext height=0 pos="1500,0"];
Forth79  -> forth64 [weight=1 color="red"]
Forth83  -> forth64 [weight=10 color="green"] 
masterforth [label="Master FORTH" fontname="Helvetica" shape=plaintext height=0 pos="1600,0"];
Forth83  -> masterforth [weight=1 color="red"]
enhancedforth [label="Enhanced FORTH" fontname="Helvetica" shape=plaintext height=0 pos="1600,0"];
figForth  -> enhancedforth [weight=100]
geoFORTH [fontname="Helvetica" shape=plaintext height=0 pos="1900,0" URL="ftp://ftp.forth.org/pub/Forth/Compilers/native/misc/commodore64/    "];
figForth  -> geoFORTH [weight=100]
cmForth [fontname="Helvetica" shape=plaintext height=0 pos="1400,0"];
miniFORTH  -> cmForth [weight=100]
Pygmy [fontname="Helvetica" shape=plaintext height=0 pos="2200,0" URL="http://www.eskimo.com/~pygmy/forth.html" tooltip="by Frank Sergeant"];
cmForth  -> Pygmy [weight=10 color="green"] 
fourIM [label="4IM" fontname="Helvetica" shape=plaintext height=0 pos="3200,0" URL="http://membres.lycos.fr/astrobe    "];
Pygmy  -> fourIM [weight=10 color="green"] 
cmForth  -> fourIM [weight=10 color="green"] 
VolksForth [fontname="Helvetica" shape=plaintext height=0 pos="1500,0" URL="http://www.forth-ev.de/filemgmt/singlefile.php?lid=17" tooltip="for MSDOS, 6502, Z80, Atari ST by Forth Gesellschaft"];
figForth  -> VolksForth [weight=100]
Forth83  -> VolksForth [weight=1 color="red"]
deltatFORTH [fontname="Helvetica" shape=plaintext height=0 pos="1600,0"];
VolksForth  -> deltatFORTH [weight=100]
Forth83  -> deltatFORTH [weight=1 color="red"]
TurboForth [fontname="Helvetica" shape=plaintext height=0 pos="1800,0"];
Forth83  -> TurboForth [weight=1 color="red"]
VolksForth  -> TurboForth [weight=100]
BigForth [fontname="Helvetica" shape=plaintext height=0 pos="2000,0" URL="http://www.jwdt.com/~paysan/bigforth.html" tooltip="Free, native code, by Bernd Paysan    "];
Forth94  -> BigForth [weight=1 color="red"]
TurboForth  -> BigForth [weight=100]
Gforth [fontname="Helvetica" shape=plaintext height=0 pos="2600,0" URL="http://gforth.org" tooltip="Free, portable and fast"];
Forth94  -> Gforth [weight=1 color="red"]
BigForth  -> Gforth [weight=100]
figForth  -> Gforth [weight=10 color="green"] 
F83  -> Gforth [weight=10 color="green"] 
lmi_pcf [label="LMI PC/Forth" fontname="Helvetica" shape=plaintext height=0 pos="1400,0" URL="DOS Forth by Ray Duncan"];
Forth83  -> lmi_pcf [weight=1 color="red"]
urforth [label="LMI UR-Forth" fontname="Helvetica" shape=plaintext height=0 pos="1600,0"];
Forth83  -> urforth [weight=1 color="red"]
lmi_pcf  -> urforth [weight=100]
lmi_meta [label="LMI Metacompilers" fontname="Helvetica" shape=plaintext height=0 pos="1500,0"];
lmi_pcf  -> lmi_meta [weight=100]
kForth [fontname="Helvetica" shape=plaintext height=0 pos="2500,0" URL="http://ccreweb.org/software/kforth/kforth.html" tooltip="Free, by Krishna Myneni"];
Forth94  -> kForth [weight=1 color="red"]
urforth  -> kForth [weight=10 color="green"] 
MultiForth [fontname="Helvetica" shape=plaintext height=0 pos="1000,0" URL="http://www.forth.com/resources/evolution/evolve_3.html#3.2" tooltip="for 68000 from Don Colburn"];
figForth  -> MultiForth [weight=100]
MacForth [fontname="Helvetica" shape=plaintext height=0 pos="1400,0" URL="http://www.macforth.com/" tooltip="Creative Solutions (Don Colburn)"];
MultiForth  -> MacForth [weight=100]
MacForthplus [label="MacForth+" fontname="Helvetica" shape=plaintext height=0 pos="1700,0" URL="http://www.macforth.com/" tooltip="Creative Solutions (Don Colburn)"];
MacForth  -> MacForthplus [weight=100]
PowerMacForth [fontname="Helvetica" shape=plaintext height=0 pos="2500,0" URL="http://www.macforth.com/" tooltip="Creative Solutions/Forth, Inc./Megawolf"];
MacForthplus  -> PowerMacForth [weight=100]
Forth94  -> PowerMacForth [weight=1 color="red"]
CarbonMacForth [label="Carbon MacForth" fontname="Helvetica" shape=plaintext height=0 pos="3000,0" URL="http://www.macforth.com/" tooltip="Megawolf, MacOS X support"];
PowerMacForth  -> CarbonMacForth [weight=100]
Forth94  -> CarbonMacForth [weight=1 color="red"]
Neon [fontname="Helvetica" shape=plaintext height=0 pos="1500,0" URL="http://foldoc.doc.ic.ac.uk/foldoc/foldoc.cgi?Neon" tooltip="by Charles Duff"];
Smalltalk [fontname="Helvetica" shape=plaintext height=0 pos="1000,0"];
Forth  -> Neon [weight=10 color="green"] 
Smalltalk  -> Neon [weight=10 color="green"] 
Yerk [fontname="Helvetica" shape=plaintext height=0 pos="2000,0"];
Neon  -> Yerk [weight=100]
Mops [fontname="Helvetica" shape=plaintext height=0 pos="2000,0" URL="http://www.powermops.org/" tooltip="by Mike Hore"];
Neon  -> Mops [weight=10 color="green"] 
PowerMops [fontname="Helvetica" shape=plaintext height=0 pos="2600,0" URL="http://www.powermops.org/" tooltip="by Mike Hore"];
Mops  -> PowerMops [weight=100]
Flint [fontname="Helvetica" shape=plaintext height=0 pos="1900,0"];
PocketForth [fontname="Helvetica" shape=plaintext height=0 pos="2300,0"];
Flint  -> PocketForth [weight=10 color="green"] 
figForth  -> PocketForth [weight=10 color="green"] 
F83Y [fontname="Helvetica" shape=plaintext height=0 pos="1400,0"];
F83  -> F83Y [weight=100]
ZF [fontname="Helvetica" shape=plaintext height=0 pos="1500,0" tooltip="(aka DF) by Tom Zimmer"];
F83Y  -> ZF [weight=100]
FPC [label="F-PC" fontname="Helvetica" shape=plaintext height=0 pos="1800,0" URL="http://www.eforth.com.tw/academy/library/f-pctech.htm" tooltip="by Tom Zimmer"];
ZF  -> FPC [weight=100]
TCOM [fontname="Helvetica" shape=plaintext height=0 pos="2000,0"];
FPC  -> TCOM [weight=100]
Win32Forth [fontname="Helvetica" shape=plaintext height=0 pos="2400,0" URL="http://win32forth.sourceforge.net/" tooltip="public domain, by Andrew McKewan and Tom Zimmer"];
Forth94  -> Win32Forth [weight=1 color="red"]
FPC  -> Win32Forth [weight=100]
F83  -> Win32Forth [weight=10 color="green"] 
Yerk  -> Win32Forth [weight=10 color="green"] 
figForth  -> Win32Forth [weight=10 color="green"] 
WorkForth [fontname="Helvetica" shape=plaintext height=0 pos="1300,0"];
figForth  -> WorkForth [weight=10 color="green"] 
PowerForth [fontname="Helvetica" shape=plaintext height=0 pos="1500,0" URL="http://www.mpeltd.demon.co.uk/forthsta.htm" tooltip="by MPE"];
Forth83  -> PowerForth [weight=1 color="red"]
WorkForth  -> PowerForth [weight=100]
ModularForth [fontname="Helvetica" shape=plaintext height=0 pos="1700,0" URL="http://www.mpeltd.demon.co.uk/forthsta.htm" tooltip="by MPE"];
Forth83  -> ModularForth [weight=1 color="red"]
PowerForth  -> ModularForth [weight=100]
GemForth [fontname="Helvetica" shape=plaintext height=0 pos="1800,0"];
Forth83  -> GemForth [weight=1 color="red"]
PowerForth  -> GemForth [weight=100]
PFD [label="ProForth for DOS" fontname="Helvetica" shape=plaintext height=0 pos="1800,0" URL="http://www.mpeltd.demon.co.uk/pfd.htm" tooltip="32-bit by MPE"];
Forth83  -> PFD [weight=1 color="red"]
PowerForth  -> PFD [weight=100]
PFW [label="ProForth for Windows" fontname="Helvetica" shape=plaintext height=0 pos="2100,0" URL="http://www.mpeltd.demon.co.uk/pfw2.htm" tooltip="by MPE"];
Forth83  -> PFW [weight=1 color="red"]
PFD  -> PFW [weight=100]
PFW  -> Win32Forth [weight=10 color="green"] 
Pcode [label="UCSD Pascal" fontname="Helvetica" shape=plaintext height=0 pos="800,0"];
AnsiC [label="ANSI C" fontname="Helvetica" fontcolor="red" shape=plaintext height=0 pos="2000,0"];
SENDIT [fontname="Helvetica" shape=plaintext height=0 pos="2300,0"];
AnsiC  -> SENDIT [weight=10 color="green"] 
Pcode  -> SENDIT [weight=10 color="green"] 
Forth83  -> SENDIT [weight=1 color="red"]
OTA [fontname="Helvetica" shape=plaintext height=0 pos="2600,0"];
Forth94  -> OTA [weight=1 color="red"]
SENDIT  -> OTA [weight=10 color="green"] 
Practical [fontname="Helvetica" shape=plaintext height=0 pos="2700,0"];
SENDIT  -> Practical [weight=100]
VFXW [label="VFX Forth for Windows" fontname="Helvetica" shape=plaintext height=0 pos="2800,0" URL="http://www.mpeltd.demon.co.uk/pfwvfx.htm" tooltip="sophisticated native-code compiler by MPE"];
Forth94  -> VFXW [weight=1 color="red"]
PFW  -> VFXW [weight=100]
SENDIT  -> VFXW [weight=100]
XVFX [label="VFX Cross Compilers" fontname="Helvetica" shape=plaintext height=0 pos="2800,0" URL="http://www.mpeltd.demon.co.uk/forth6.htm" tooltip="Cross-development environment by MPE"];
Forth94  -> XVFX [weight=1 color="red"]
Practical  -> XVFX [weight=10 color="green"] 
PFW  -> XVFX [weight=100]
bForth [fontname="Helvetica" shape=plaintext height=0 pos="2000,0" tooltip="Author: Bill Muench"];
eForth [fontname="Helvetica" shape=plaintext height=0 pos="2100,0" URL="http://forth.org/library/eforth_SOC/eforth_SOC_source/eForth1/" tooltip="Author: C. H. Ting (Bill Muench for the more complete, less popular version)"];
bForth  -> eForth [weight=100]
RetroForth [fontname="Helvetica" shape=plaintext height=0 pos="2800,0" URL="http://www.retroforth.org/ " tooltip="public domain, by Tom Novelli"];
cmForth  -> RetroForth [weight=10 color="green"] 
eForth  -> RetroForth [weight=10 color="green"] 
Pygmy  -> RetroForth [weight=10 color="green"] 
PilotFORTH [fontname="Helvetica" shape=plaintext height=0 pos="2700,0" tooltip="for PalmOS by Neal Bridges, Quartus Handheld Software"];
cmForth  -> PilotFORTH [weight=10 color="green"] 
Forth94  -> PilotFORTH [weight=1 color="red"]
QuartusForth [label="Quartus Forth" fontname="Helvetica" shape=plaintext height=0 pos="2800,0" URL="http://www.quartus.net/products/forth" tooltip="for PalmOS by Neal Bridges, Quartus Handheld Software"];
PilotFORTH  -> QuartusForth [weight=100]
Forth94  -> QuartusForth [weight=1 color="red"]
Reva [fontname="Helvetica" shape=plaintext height=0 pos="3500,0" URL="http://ronware.org/reva/" tooltip="small, cross-platform (x86 Linux and Windows) by Ron Aaron"];
RetroForth  -> Reva [weight=100]
T4 [fontname="Helvetica" shape=plaintext height=0 pos="3500,0" tooltip="by Jörg Völker presented at Forth-Tagung 2006"];
SwiftX  -> T4 [weight=10 color="green"] 
popFORTH [fontname="Helvetica" shape=plaintext height=0 pos="1200,0"];
figForth  -> popFORTH [weight=100]
comFORTH [fontname="Helvetica" shape=plaintext height=0 pos="1600,0" tooltip="by Egmont Woitzel (FORTecH)"];
popFORTH  -> comFORTH [weight=100]
Forth83  -> comFORTH [weight=1 color="red"]
kkForth [fontname="Helvetica" shape=plaintext height=0 pos="2100,0"];
Forth83  -> kkForth [weight=1 color="red"]
Marc4qForth [label="MARC4 qForth" fontname="Helvetica" shape=plaintext height=0 pos="2400,0" tooltip="on Telefunken TEMIC MARC4 (a very successful 4-bit Forth chip)"];
Forth83  -> Marc4qForth [weight=1 color="red"]
TalbotForth [label="Talbot tFORTH" fontname="Helvetica" shape=plaintext height=0 pos="1200,0" tooltip="by Talbot Microsystems, CA for 6809 and 6800"];
figForth  -> TalbotForth [weight=100]
DragonForth [label="Dragon FORTH" fontname="Helvetica" shape=plaintext height=0 pos="3100,0" URL="http://sourceforge.net/projects/dragonforth/" tooltip="for PalmOS by Dimitry Yakimov?"];
Forth94  -> DragonForth [weight=1 color="red"]
_32FORTH [label="32FORTH" fontname="Helvetica" shape=plaintext height=0 pos="1800,0"];
figForth  -> _32FORTH [weight=10 color="green"] 
F83  -> _32FORTH [weight=10 color="green"] 
MAF [fontname="Helvetica" shape=plaintext height=0 pos="2600,0" URL="ftp://ftp.taygeta.com/pub/Forth/Applications/ANS/maf1v02.zip" tooltip="Minimal ANS Forth by Chris Jakeman written in Forth"];
Forth94  -> MAF [weight=1 color="red"]
aackosoft_fig [label="Aackosoft FIG-Forth" fontname="Helvetica" shape=plaintext height=0 pos="1200,0" URL="http://tzxvault.retrogames.com/f.htm" tooltip="for the Sinclair ZX-81"];
figForth  -> aackosoft_fig [weight=100]
FysForth [fontname="Helvetica" shape=plaintext height=0 pos="1300,0"];
Forth78  -> FysForth [weight=1 color="red"]
tForth [fontname="Helvetica" shape=plaintext height=0 pos="2200,0" URL="http://home.iae.nl/users/mhx/t4artic.html" tooltip="for the Transputer by the Dutch Forth Workshop"];
aackosoft_fig  -> tForth [weight=10 color="green"] 
FysForth  -> tForth [weight=10 color="green"] 
eForth  -> tForth [weight=10 color="green"] 
iForth [fontname="Helvetica" shape=plaintext height=0 pos="2500,0" URL="http://users.bart.nl/users/mhx/i4faq.html" tooltip="Featureful optimizing Forth for IA-32, various OSs"];
Forth94  -> iForth [weight=1 color="red"]
tForth  -> iForth [weight=100]
mxForth [fontname="Helvetica" shape=plaintext height=0 pos="2700,0" URL="http://home.vianetworks.nl/users/mhx/mxforth.html" tooltip="Optimizing Forth for IA-32 by Marcel Hendrix"];
iForth  -> mxForth [weight=100]
jupiter_ace [label="Jupiter ACE" fontname="Helvetica" shape=plaintext height=0 pos="1200,0" URL="http://www.jupiter-ace.co.uk" tooltip="Home computer with Forth in ROM"];
Forth79  -> jupiter_ace [weight=10 color="green"] 
webForth [fontname="Helvetica" shape=plaintext height=0 pos="5000,0" URL="https://github.com/mitra42/webForth" tooltip="Author: Mitra Ardron"];
eForth  -> webForth [weight=100]
Forth2012  -> webForth [weight=1 color="red"]
JForth [fontname="Helvetica" shape=plaintext height=0 pos="1600,0" URL="http://jforth.org/History_JF.html" tooltip="Native Code system for Amiga by Mike Haas and Phil Burk"];
ForthCMP [fontname="Helvetica" shape=plaintext height=0 pos="1200,0" URL="https://almy.us/forthcmp.html" tooltip="Native Code system for MS-DOS by Tom Almy"];
MMTO_SuperForth [label="MMTO SuperForth" fontname="Helvetica" shape=plaintext height=0 pos="900,0" URL="http://www.complang.tuwien.ac.at/forth/family-tree/historic-systems/MMTO-Superforth.txt" tooltip="Threaded-Code System for the Nova by David McClain"];
miniFORTH  -> MMTO_SuperForth [weight=10 color="green"] 
X_SuperForth [label="6502 SuperForth" fontname="Helvetica" shape=plaintext height=0 pos="1100,0" URL="http://www.complang.tuwien.ac.at/forth/family-tree/historic-systems/6502-SuperForth.txt" tooltip="Threaded-Code System for the 6502 by David McClain"];
MMTO_SuperForth  -> X_SuperForth [weight=100]
HyperForth [fontname="Helvetica" shape=plaintext height=0 pos="1200,0" URL="http://www.complang.tuwien.ac.at/forth/family-tree/historic-systems/HyperForth.txt" tooltip="Threaded-Code System for the SAGE II/IV (68000) by David McClain"];
X_SuperForth  -> HyperForth [weight=100]
}