devernay@POLY.POLYTECHNIQUE.FR (Devernay Frederic) (06/21/91)
I now have a //c and I would like to know several things: is it possible to link an old diskII drive to the //c, and how is the cable? is the 800k drive for the //c like a Mac one, can I link a Mac drive to the //c? can I link both drives to a //c? and same questions for a IIgs (as I may have one soon). thank you Frederic Devernay devernay@poly.polytechnique.fr
curtis@achilles.ctd.anl.gov (Jeffrey Curtis ) (06/21/91)
In article <9106210925.AA19158@poly.polytechnique.fr> devernay@POLY.POLYTECHNIQUE.FR (Devernay Frederic) writes: >I now have a //c and I would like to know several things: >is it possible to link an old diskII drive to the //c, and how is the >cable? >is the 800k drive for the //c like a Mac one, can I link a Mac drive to >the //c? >can I link both drives to a //c? Yes, yes, yes, and yes. The disk ][ shouldn't be a problem, you just have to find a cable and/or adapter that will fit the desired ports. "The" 800k drive? There are many.. personally, I use a Laser 800k on my //e, and yes, it is a Mac drive. Again, it's simply a matter of finding proper adapters. Both can be hooked to a //c with no problems (that I am aware of). >and same questions for a IIgs (as I may have one soon). .. and the same answers for a //gs. I've seen disk ][s hooked to a gs (I think..) and the 800k drives will probably fit right into the smartport. If you're using a Laser drive, though, you'll need a UDC (Universal Disk Controller).. Jeff *+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+* + Jeffrey S. Curtis (708)972-8585 B41801 AT ANLVM curtis@achilles.ctd.anl.gov + * Computing and Telecommunications, Argonne National Laboratory * + "The opinions expressed above are mine only. Who else would want them?!" + *+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*
josh@osf.org (Joshua Goldman) (06/21/91)
There are some potential problems hooking up a 3.5 inch disk to a //c. First question you have to figure out is what ROM you have in your //c. An article from ralpho@cs.fau.edu (Ralph P Carpenter) shows how to find out which ROM you have. I appended it to the end of this article. If you have the correct ROM, a unidisk 3.5 inch drive will work with a //c. I'm not sure about other Mac drives. I know that they'll work with the Laser 128EX, but I tried an Apple Mac drive on my //c and it didn't work. If someone knows otherwise, let me know. One thing to be aware of is that even if you get a Mac 3.5 drive to work on your //c, you'll discover that it doesn't have an eject button. The Mac always ejects disks via software/firmware. On the //c you have to eject disks manually. If your 3.5 drive doesn't have any eject button, you'll have to play with a papercl ip in the emergency eject hole. Your best bet is to get a 3.5 inch unidrive. They appear forsale for about $90 to $125. (I'm looking for another one, if someone is selling.) If you do have a //c with an old ROM, apple dealers are supposed to replace it with a ROM that supports the Unidisk for free. You need to show them a receipt indicating that you have bought a unidisk. You may have to convince them that they're supposed to do this, but they are. Article 11039 of comp.sys.apple2: Path: paperboy!snorkelwacker.mit.edu!apple!usc!samsung!rex!uflorida!cs.fau.edu!ralpho From: ralpho@cs.fau.edu (Ralph P Carpenter) Newsgroups: comp.sys.apple2 Subject: Re: Apple IIc Date: 15 Jan 91 19:57:37 GMT Reply-To: ralpho@acc.fau.edu (Ralph P Carpenter) Organization: Florida Atlantic University, Boca Raton Lines: 42 In article <memo.676087@lynx.northeastern.edu> sehrlich@lynx.northeastern.edu writes: >[...] >I have heard that there were different versions >of the IIc that Apple put on the market. And that each version >did certain things just a bit differently that the other version. >[...] You can inspect the value stored at memory address $FBBF (64,447 decimal) in order to find out which version of the Apple//c you have. From Applesoft Basic ("]" prompt), you can do: ] PRINT PEEK (64447) From the Monitor ("*") prompt, you can do: * FBBF The value you get back is the ROM version number. The basic and most meaningful differences are: FF 255 Original //c -- boat anchor 00 000 adds support for 3.5" Unidisk drives 03 003 adds expanded-RAM support 04 004 fixes bugs in expanded-RAM support 05 005 Apple //c+ Some (all?) of the original (ROM FF) machines have a defective crystal that prevented their modem port from operating correctly at speeds in excess of 300 bps... A few years back, we ordered five or so machines for some of our faculty to use at home -- all but one were ROM FF and had the defect :-( One was a ROM 03 -- guess who got (has) that one? :-) Fortunately, Apple dealers (are supposed to) replace the bad crystal free-of-charge. Hope this helps. -- | Ralph P Carpenter | InterNet: Ralpho@acc.fau.edu | Blake's 7: | | Sr Programmer/Analyst | Bitnet: Ralpho@FauVax | The | | Florida Atlantic Univ | Ci$: 74015,644 GEnie: Ralpho | Motion | | at Boca Raton | Vox: 407/367-2616 Fax: -2749 | Picture | -- Joshua Goldman josh@osf.org (617)-621-8857 Open Software Foundation 11 Cambridge Center Cambridge, MA 02142