High Quality Content by WIKIPEDIA articles! The Commodore 8050 and Commodore 8250 were dual unit 5 1/4 " floppy disk drives for Commodore International computers. They used a wide rectangular steel case form similar to that of the Commodore 4040, and used the IEEE-488 interface common to Commodore PET/CBM computers. The 8050 was a single sided drive, whereas the 8250 could use both sides of a disk simultaneously. Both used a "quad" density format storing approximately 0.5 megabyte per side. The density of media was similar to later PC high density floppy disks, but the 8050 and 8250 could not use PC high density disks reliably. Since "quad" density disks were rare even at the time, users quickly found that typical double density floppy disks had enough magnetic media density to work in these drives.

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