Re: 3174 disks
| Newsgroups | gmane.comp.emulators.hercules390.general |
|---|---|
| Message-ID | <[email protected]> |
Le 6/28/2019 à 7:41 PM, Benjamin Huntsman BHuntsman-KAweP20W6/[email protected] [hercules-390] a écrit : > > > Hi there! > > I've seen it discussed a few times, but no definitive answers that > I could piece together... > > Has anyone on here successfully read or duplicated a 3174 diskette > on a regular computer? If so, can you tell me what hardware, drive, > and software you used? > > What I managed to do was copy 5494 (5250 terminal controllers to connect to AS/400 systems) and I think they might be of the same era (and may have common components). Making succesful clones was never a problem. > > I'm trying to resurrect my old 3174 and get my 3290 running, and > I'm really hoping to know for sure: > > > 1. What format are the 3174 disks? I know they're 2.4MB drives, but > are the floppies actually 2.4MB? > They probably have a non disclosed format, but the block sizes are probably pretty standard (512 Bytes/block). They are double sided 5.25 soft sectored HD (1.2MB per side). Cloning a diskette should be pretty easy. > > 1. Will the 3174 read a regular 5.25" floppy? > Well one that has been cloned shouldn't be a problem ! Modern boards probably no longer have a diskette controller - but there might be USB controlers hanging around, finding a 5.25 diskette drive could be a challenge as well as the media ! > From a historical perspective, does anyone know anything about the > workflow or tools used in how IBM developed the 3174 and it's microcode? > > Not me.. Sorry... --Ivan [Non-text portions of this message have been removed] ------------------------------------ ------------------------------------