2HD Floppy

[army_ant7]

I have old floppies. It says on them 2HD. I know what HD(high density) means, but what's the 2?

Thanks!

 

[wuzy]

Does the packaging say it's a 1.44MB or 2.88MB(read it in textbook only, never seen one)?

 

[djbrad007]

Hi,

I think it was a company manufacturing those floppies, as I remember having somes.

Never saw the 2.88mb ones, only 1.44 and LS-120 (and my super zip 100/250).

Brad

 

[wuzy]

For curiosity sake I went to search for my stack of floppy, the SONY ones have 2HD written on them while the Verbatim disk has HD which I use for servicing the few rare XP computers around have. They both are 1.44MB and work fine in my floppy drive. *shrugs*

Floppies, quite a novelty item they've become. :lol:

 

[gimpy1]

What the hell is a floppy?

 

[army_ant7]

LOL! Hehehe... It's because I can't find any info on them. You said they work in the same kind of drive anyway... Thanks guys.

 

[Onus]

Are these 3-1/2" or 5-1/4"? The 2HD 5-1/4" ones were 1.2MB.

 

[army_ant7]

I'm talking about the 3-1/2" conventional ones? Do you know what the 2HD means?

 

[Paperdoc]

Probably means double-sided, high density.
For IBM PC's, the first floppies were Double-Sided Double Density, capacity 360 KB. Those were all 5¼". Anyone remember specifying DSDD 5¼" floppies? (There had been a 5¼" Single-Sided Double Density format of 180 KB.) I remember at that time buying SSDD disks for the Commodore 64 system that held 160 KB. We'd then punch a notch in the opposite edge to allow us to turn them over and use the second side for an additional 160 KB and most of these diskettes were free enough of defects on the other side to work OK. We called them "flippy disks".

On PC's with the advent of the AT design, IBM introduced the DSHD (High Density) design of 5¼" floppy, 1.2MB capacity. With the PS/2 machine design they introduced the 3½" floppy, Double-Sided, High Density, capacity 1.44 MB. There also was a Single-Sided version of those at 720 KB capacity. But since "DSHD" has been used for 5¼" floppies, some of the new 3½" ones were labeled "2HD". These dominated the floppy formats for many years and are still the "standard"version of a disappearing technology.

 

[army_ant7]

Wow!!! You know a lot! You must be veteran. LOL!

You answered my question. Thank you! Hehehe...