CP/M was a very popular operating system from about 1975-1985, prior to MS-DOS becoming popular (look them up in wikipedia), and prior to hard disks becoming common. I am offering a circuit board that fits into an Apple IIe computer, runs CP/M, and operates a dual 8" diskette drive (included), together with 5" (Apple compatible) diskettes and 8" diskettes, including boot diskettes. None of these have been tested for about 30 years, but they were in operating condition when retired. They have been kept warm and dry. I do not recall whether only CP/M can access the 8" diskettes, or also the Apple OS. If you are interested, I can send photos and additional information. You must have an Apple IIe computer since I no longer have one.
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