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For questions about computer disk drives for removable magnetic storage media.

18 votes
Accepted

Where can I find an external 8-inch floppy disk drive?

As far as I'm aware there is no source of new 8" drives. If you do manage to find a working drive, there are a couple of options to connect it to a modern PC over USB: the KryoFlux floppy controlle …
Stephen Kitt's user avatar
9 votes
Accepted

Disk drive long storage, with or without disk inside?

Leave it empty. In floppy drives, the read/write head touches the disk’s surface, so leaving a disk inserted for long periods of time can cause problems — the head will tend to stick to the surface, p …
Stephen Kitt's user avatar
50 votes

Why were floppy disks invented after hard disks?

Floppy disks are harder to get right than hard disks. Early hard disks were enormous; the IBM 350 used fifty 24-inch platters. They were also rather fragile and cumbersome (heavy and power-hungry). To …
Stephen Kitt's user avatar
41 votes

How did it come that SATA HDDs use ATA while SATA CD drives use SCSI as protocol?

Let’s start by addressing a few misconceptions. I have a new external Western Digital USB HDD here and I saw in Wireshark that it uses SCSI. That’s because storage over USB uses SCSI-style protocols …
Stephen Kitt's user avatar
14 votes
Accepted

Only "Drive A:" detected with two floppy disk drives

Unfortunately, you can't connect two floppy drives to the motherboard header on that system. Like most motherboards since sometime around 2002–2003, it only supports one floppy drive, probably because …
Stephen Kitt's user avatar
5 votes

Did any 8-bit disk drive screen off the hardware?

(This only addresses the question in the title and the last paragraph of the question.) Did any 8-bit drive unit ever accept only a high-level protocol, such that it would be possible for a later rev …
Stephen Kitt's user avatar