12/8/2023 0 Comments Apple ii floppy disk format![]() ![]() Steve Jobs with Apple II and disk drives. The 3.5-inch format was the last mass-produced floppy disk format, replacing 5.25-inch floppies by the mid-1990s. "Previously," the company explains, "we've demonstrated how using the Adafruit Floppy interface you can read and write disks for PC and Commodore 64, and also read disks for Mac including crunchy old 400kB and 800kB floppies, which PCs have traditionally been unable to read."Īdafruit has been working on its floppy drive project since last year, announcing back in January the release of code supporting Arduino boards as floppy drive controllers - and, thus, the creation of an open source USB floppy drive. In the 1970s and 1980s, floppy disks were the primary storage device for word processors and personal computers, and became the standard way to distribute software. As a result, reading or writing the disks traditionally required specialized hardware - now replaceable with a simple microcontroller and an easy-to-find IBM-compatible floppy drive. The functionality is notable for one simple reason: Vintage Apple systems, including the Apple II for which Number Munchers was written, use a completely different disk format than standard IBM-compatible PCs. Adafruit's floppy controller now supports writing Apple II disks with a standard IBM-compatible drive. It was also the first compact Mac to include a 1.44 MB high density floppy disk drive as standard (late versions of the SE had one, but earlier versions did not).
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