IBM 3540 diskette is still mentioned in JCL reference, which caught my
attention.
I have reviewed some materials but still have many questions:
1. Was it popular equipment or it was rather rarely used?
2. What was the purpose of 3540? Was it (early) replacement for punched
cards?
3. What was the capacity of the diskette, roughly?
4. Files naming and organisation (subdirectories).
5. Was it used as R/W device (that means it could read from diskette and
write to it)?
6. AFAIK there was autoloader there. How the diskettes were changed? Was
it mount request as for tapes?
7. How it was connected to the host? Bus & Tag?
8. Was it defined in IODF as a CU and DEV?
--
Radoslaw Skorupka
Lodz, Poland
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