george@racsys.UUCP (George Rachor Jr.) (05/16/91)
I picked up a Pet 2001-8 a while back and would like to find out a couple of things. Can anyone tell me the pinouts on the back or if it is possible to run a disk drive on this machine? It has a whopping 8K of Ram. Can I do anything useful with this? -- George Rachor Jr. Rachor Data Center, Beaverton, OR 97005 racsys!george@flight.hf.intel.com
ppugliese@pimacc.pima.edu (05/17/91)
In article <251@racsys.UUCP>, george@racsys.UUCP (George Rachor Jr.) writes: > I picked up a Pet 2001-8 a while back and would like to find out a couple > of things. Can anyone tell me the pinouts on the back or if it is > possible to run a disk drive on this machine? It has a whopping 8K > of Ram. Can I do anything useful with this? > > > -- > George Rachor Jr. > Rachor Data Center, Beaverton, OR 97005 > racsys!george@flight.hf.intel.com All I can tell you is that you can connect any of CBM's old IEEE type disk drives. The 4040 is one example. PHIL
root@zswamp.uucp (Geoffrey Welsh) (05/23/91)
In a letter to All, George Rachor Jr. (george@racsys.UUCP ) wrote: >I picked up a Pet 2001-8 a while back and would like to find >out a couple >of things. Can anyone tell me the pinouts on the back or if >it is >possible to run a disk drive on this machine? It has a >whopping 8K >of Ram. Can I do anything useful with this? If you have the very first version of ROMs, then Commodore's IEEE disk drives won't work; if you have the upgrade ROMs, then they will. Hmm, I forget which characters in the power-up screen go with which ROM version; that would be the easiest way to identify which ROM you have. Upgrade ROMs contained a machine language monitor and the originals didn't; perhaps SYS 1024 is a good test (if you get a printout announcing the values of 6502 registers and a dot prompt ("."), then you can use the Commodore IEEE drives). There were other drives, but they weren't well-supported and you'd probably be hard pressed to find one in working order now. Once upon a time, 8K was enough to run MicroChess (it didn't work on the 4K PET... gee, I wonder why?!?), but I have to admit that you can't do much with 8K. If this machine is in *mint* condidion, I may be interested in buying it as a personal 'museum piece'. -- Geoffrey Welsh - Operator, Izot's Swamp BBS (FidoNet 1:221/171) root@zswamp.uucp or ..uunet!watmath!xenitec!zswamp!root 602-66 Mooregate Crescent, Kitchener, ON, N2M 5E6 Canada (519)741-9553 "He who claims to know everything can't possibly know much" -me