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Questions tagged [floppy-disk]

For questions related to the use, restoration and imaging of floppy disks.

85
votes
16answers
19k views

Does “Disk Operating System” imply that there was a “non-disk” Operating System?

In the 1980's at primary school we saw MS DOS and DR DOS competing before Windows 3.1 and subsequent releases took over that space. At home we had Apple II's which booted up to a BASIC prompt. On ...
4
votes
0answers
105 views

Can a modern 1.44MB floppy drive work with an Amiga 2000? [duplicate]

Can an Amiga 2000 (or even A500) be made to easily work with modern 1.44 MB drives? Meaning, is it just a matter of pin mappings or are the drives just too incompatible? I realize there are other ...
11
votes
3answers
392 views

Building a floppy disk workstation to handle bulks

I need to handle bulks of floppy disks where I have to archive their contents and then recycle them by formatting them for use on old Amiga/Atari/MS-DOS computers. I currently have a 3.5" floppy disk ...
6
votes
1answer
539 views

Can the Gotek floppy emulator be made to work with classic Macs?

The Gotek floppy emulators are really popular in the retro scene. I have one modified (firmware update) to work with my Amiga 500. Can one be made to work with any of the classic line of Macintosh ...
8
votes
4answers
1k views

Writting DSK images onto a 3'' floppy for Amstrad/Sinclair computers

For a project I'm working on, I need to write some disks to test on my Amstrad CPC 6128. I've got some 3'' inch blank disks, and all my Amstrad computers (CPC and PCW) have 3'' inch disks, as well as ...
24
votes
4answers
4k views

Can I image Amiga Floppy Disks on a Modern computer?

Is there any way of reading Amiga floppy disks to PC hard-drive? Can I use a standard Floppy drive with a firmware program that will translate it? Do I need an external drive or a working Amiga ...
7
votes
2answers
1k views

Repairing/Lubing/Fixing Amiga 500 floppy drive

I have acquired an Amiga 500 that seems fully functional, but the floppy disk drive seems to have mechanical issues. I could get it to read a few floppy disks until the last one wouldn't pop out when ...
7
votes
1answer
470 views

How do I add multiple internal drives to an Amiga 2000?

The default configuration of an Amiga 2000 has a single internal floppy drive. Can I add a second internal floppy drive? Can I add a third or fourth drive too?
10
votes
3answers
1k views

Only “Drive A:” detected with two floppy disk drives

I am trying to repurpose an old Acer Aspire M1641 to copy/format bulks of 3.5'' floppy disks. I think it's one of the last generations of computers to have a 34 pin floppy disk drive header as it also ...
9
votes
3answers
388 views

How can I copy software which is too large for one Atari ST floppy disk?

I have downloaded the STOS game creator from the STOS download page. I'm trying to copy the software from my computer to a floppy disk formatted on an Atari ST, but I get an error message saying the ...
7
votes
2answers
582 views

Transferring data from Spectrum +3 disk to tape/.TAP etc

I've recently found a number of my own programs (very old!) on Spectrum +3 discs, and I'm about to get hold of a working +3. Assuming the discs are readable, I'd like to transfer the programs (mostly ...
10
votes
2answers
465 views

Bootable floppies lock up with floppy drive connected via USB adapter

I am currently trying to mount a 3.5'' floppy disk drive in a modern computer. What I did is that I bought a 34-pin floppy drive connector to external USB adapter so that I can connect it to my ...
8
votes
2answers
527 views

Replacing the Floppy drives in my Amiga 3000

My Amiga 3000 is starting to show its age, and recently one of the two internall floppy disk drives appears to have given up the ghost... I'd like to replace the drive but the A3000 case doesn't have ...
21
votes
2answers
1k views

Why did connecting the IBM PC 3.5" FDD backwards cause the problems it did?

When the 3.5" FDD was introduced for the IBM PC and compatibles (or possibly earlier), someone made a decision to make the data cable between the controller and drive unkeyed. This, of course, meant ...
12
votes
3answers
3k views

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

Where can I find an external 8-inch floppy disk drive? I have some data I would like to retrieve from a really old 8-inch (200 mm) floppy disk, but have no working computer than has a drive to read ...
9
votes
1answer
338 views

HxC floppy emulator on Amiga 1200, second virtual drive disappears after reboot

I've recently purchased a HxC/Lotharek SD Card floppy drive emulator. It's working well replacing DF0: but I'm seeing some odd behaviour with its emulation of DF1:. On the first boot after power-up, ...
40
votes
8answers
7k views

How long will floppy disks maintain data integrity?

This was on CNN today: The U.S. is still using floppy disks to run its nuclear program Which led me to read through this article: Think the floppy disk is dead? Think again! Here’s why it still ...
12
votes
3answers
1k views

Writing 800k Mac floppy images for 1.44M-equipped Macs using Linux

If you have Macintosh filesystem image of an 800k boot disk, but your physical Mac has a 1.44M SuperDrive, how can you produce a physical disk that can boot that Mac?
23
votes
3answers
750 views

Absolute maximum number of nibbles on an Apple II floppy disk track?

The Apple 2's disk drive controller and 5¼" floppy disks have the following metrics: The disks is spun at (roughly) 300 RPM (Revolutions per Minute), which means it takes = 1000 ms/sec / (300 RPM / ...
19
votes
2answers
1k views

What were the differences in floppy disk formats between Amiga and IBM/PC compatible computers?

The capacity in Amiga Old File System format (OFS, OS version 1.x) was 840KB, with the Fast File System ("FFS" (!)) introduced for OS 2.x onwards able to store 880KB. The PC format stored 720KB on the ...
27
votes
1answer
1k views

How does “bit-slip” copy protection work?

Some Apple II 5.25" floppies used a special pattern of bytes that could not be automatically detected by disk copying software. How could the pattern be invisible to disk copiers but detectable by ...
16
votes
2answers
813 views

Cleaning 5 1/4 floppy drives

Going to the store is treacherous for me. So I prefer doing stuff at home, including cleaning up 5 1/4 floppy disks with only home supplies. Unfortunately, I do not know how or which materials/...
29
votes
6answers
806 views

Dumping and archiving C64 disks

Doing spring cleaning with family, I found some old C64 disks. These are really old and no one knows what to do with them. Archiving or dumping them seems to be options but we are unsure how to do so ...