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MachTen 4

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Year released:
[www].se [ftp].se [mirror].us [mirror].de
MachTen_4.0.sit (12.38 MB)
MD5: 6357fcefc7a55dcd150370e2f47f964e
For System 7.0 - 7.6 - Mac OS 9
[www].se [ftp].se [mirror].us [mirror].de
MachTen_4.0_X_Window_X11R5.sit (10.64 MB)
MD5: 0f2b7bbed19118499f01e5f277bee161
For System 7.0 - 7.6 - Mac OS 9
[www].se [ftp].se [mirror].us [mirror].de
MachTen_4.0_Man_Pages.sit (5.49 MB)
MD5: cc6a18ccc54fb85236a0bf7fb09d6ab8
For System 7.0 - 7.6 - Mac OS 9
[www].se [ftp].se [mirror].us [mirror].de
MachTen_Updater_4.0.1b2.sit (4.17 MB)
MD5: 8398a3f71974bd72f6578061223ed6f8
For System 7.0 - 7.6 - Mac OS 9
[www].se [ftp].se [mirror].us [mirror].de
MachTen-XWin_4.0.2.sit (21.99 MB)
MD5: 27089e8d2a32cf0a1d38900a341e5fc9
For System 7.0 - 7.6 - Mac OS 9
[www].se [ftp].se [mirror].us [mirror].de
MachTen_4.0.3.sit (39.83 MB)
MD5: 16d9179fd2f51935a51d3ceae8597be8
For System 7.0 - 7.6 - Mac OS 9
[www].se [ftp].se [mirror].us [mirror].de
power-machten414.iso (621.84 MB)
MD5: 221fd957256de078f343dad296817128
For System 7.0 - 7.6 - Mac OS 9
[www].se [ftp].se [mirror].us [mirror].de
Guides on emulating older applications

MachTen is a Unix-like operating system from Tenon Intersystems. It is based on 4.4BSD and the Mach kernel, and features the X Window System and GNU programming tools. It runs only as a classic Mac OS application program (in a virtual machine) on Apple Macintosh computers.

MachTen development started in 1989, culminating in the first release in 1991. The Professional MachTen branch, intended for 68000-based Macintoshes, ended with release 2.3. The Power MachTen branch, which is Power Macintosh compatible, lacks some of the features of Professional MachTen (including true virtual and protected memory models), but takes full advantage of the PowerPC processor and is compatible with Mac OS 9 through its final version, 4.1.4. MachTen is no longer developed, and is functionally superseded by Mac OS X.

MachTen Commands and Utilities (Representative List):
• System Commands: csh, df, du, dump, finger, install, login, man, mt, passwd, printenv, shutdown, stty, su, supmaint, sync, time, tty, update, uptime, users, who, whoami, sh, bash, pdksh, tcsh
• File Manipulation Commands: ar, basename, cat, cd, chmod, chown, cmp, comm, cp, diff, grep, head, ls, mkdir, more,mv, od, rcp, rm, rmdir, sed, size, sort, sum, tail, tar, tee, tr, what, whereis
• Text Manipulation Commands: groff, troff, nroff, ed, eqn, emacs, ex, expand, fmt, fold, graph, plot, pr, ptx, refer, rev, spell, style, tbl, ul, vi, perl-5.004
• Process Manipulation Commands: at, init, kill, nice, ps, sleep, wait
• General Utilities: alarm, bc, cal, calendar, dc, date, echo, expr ,false, last, leave, lpd, lpr, pwd, tell, true, vacation, wall, write, yes
• MachTen Networking Applications: - Complete family of UNIX network clients and servers - biff, ftp, hostid, hostname, ifconfig, inetd, mail, named, nfsd, ping, portmap, rlogin, rmail, route, routed, rsh, rshd, rwho, sendmail, slattach, talk, telnet, tftp, tip, elm, mh, pine, procmail, upop, popclient, irc, knews, lynx, tin, xntp, uucp
• MachTen Software Development Applications: - Complete C, C++, Objective-C, Java and Ada Tools - as, cb, cc, error, f77, fpr, fsplit, gcc, gdb, g++, indent, ld, lex, lint, lorder, lxref, m4, make, md, mig, mkdep, mkstr, nm, tcopy, tp, vgrind, yacc, gnat 3.09, sisal, autoconf, automake, bison, flex, ncurses, style, p2ada
• MachTen X Window Client and Server Applications: - Complete X11R6 X server, X client and Motif development • environment - X, Xmark, afterstep, apres, asclock, bitmap, fsinfo, ico, imake, maze, mwm, nedit, playaudio, xauth, xcalc, xcolormap, xdm, xearth, xlock, xlogo, xsm, xv, xxinit, tcl, tk

Power MachTen 4.1.1
Floodgap's Power MachTen Hacking Page

See Also: Professional MachTen (68K)

The 1st download is MachTen 4.0.
The 2nd download is MachTen 4.0 X Window X11R5.
The 3rd download is MachTen 4.0 Man Pages.
The 4th download is MachTen Updater 4.0.1b2.
The 5th download is MachTen 4.0.2 with X Window.
The 6th download is MachTen 4.0.3.
The 7th download is MachTen 4.1.4. Sourced from, thanks AlexS!

Architecture: PPC

Power Macintosh
350 MB hard disk space (minimum)


larbob's picture
by larbob - 2020, October 9 - 3:34am

It seems as if the serial "1-5-11-3ffff826c-232147-95-4WT" works for 4.1.4.

EDIT: no, it actually doesn't complain about it in the chnglicense menu but complains if you try to boot again.

larbob's picture
by larbob - 2020, October 6 - 2:58am

Does anyone have a license for this? As far as I've been able to tell, Tenon is totally defunct and this is abandonware.

Jatoba's picture
by Jatoba - 2019, January 23 - 1:32am

It is an OS within a virtual machine. The virtual machine literally boots into it. Nothing about it is an emulator: it is all 100% natively run.

You can still technically call it an utility, though, if you believe we can call virtual machines in general "utilities", since they are all programs run under a host OS.

3371-Alpha's picture
by 3371-Alpha - 2017, February 25 - 7:09pm

Although this *is* an OS, a part of me wants to classify it as an emulator or utility since you can't boot into it.

Kitchen2010's picture
by Kitchen2010 - 2015, October 21 - 6:04pm

I got it from MacsRUS, I just uploaded this stuff. I checked again against what I got from him. If it is corrupt, it must have been so in his archive already. Should we remove it or does someone knows a kind of way to repair it ?

mrdav's picture
by mrdav - 2015, October 21 - 8:50am

The archive MachTen_4.0.3.sit is damaged. Error message is "The integrity of the data fork of "web2" could not be verified"

Kitchen2010's picture
by Kitchen2010 - 2015, August 31 - 10:20am

OK, I added it ! Now it is complete !

megrex's picture
by megrex - 2015, August 27 - 10:00am

Very nice work kitch. But I'm _definitely_ not going to load this one up in Sh/Sh !!
- looks like it would be tricky to get going.

Can your append your current request to MacsRUS , to include

MachTEN 4.0 îƒ.sit

he accidently missed it out from my MachTEN requests a few days ago.

Hope that's OK - Don't want to hassle him for just one file , and I haven't had chance to put together a substantial list of my own yet , Cheers.

Kitchen2010's picture
by Kitchen2010 - 2015, August 27 - 9:31am

I have added MachTen 4 from MacsRUS's archive.