Variant Details





Main Image: Top / Obverse
001c.jpg
Additional Image: Bottom / Reverse
002c.jpg
Product Name 3 ½” Floppy Disk HD 3.5" diskette digital data disk
double sided/high density (2HD),
double sided
Variant ID V0000375
Name of Holotype 3 ½” Floppy Disk HD
double sided/high density (2HD),
double sided/extended density (2ED)
Holotype ID H000091
Product Code/Number
Manufacturer
Genre(s) Data
Carrier Type disk cartridge
Process Type magnetic
Medium Type floppy disk
Standards IBTN/EBU: FD3
Market Professional
Height 94 mm
Width 90 mm
Diameter
Depth 3 mm
Running Length
Marketed Capacity 1440 Kb
Materials Floppy magnetic disk media within rigid plastic cartridge.
Distinguishing Features HD Disk (on upper Corner or Shutter) A rigid variable coloured plastic case with a slideable write protect catch in one corner and a similarly shaped hole (no protection slide) in the other corner.
Status
Collection of: National Library of Australia
Created by National Library of Australia
Assessment Summary Digital Preservation assistance required for transfer from existing media to the managed digital storage system. (modest effort)
Remarks 1.44 - 2.88 Mb
Production Started 1987
Production Stopped 1987
Application Binder
Binder Stability
Dye/Emulsion/Oxide
Base material
Back Treated

Back Treated: (μm) or (μ")

Base Thickness: (µm) or (µ")

Dye/Emulsion/Oxide Thickness: (μm) or (μ")

Total Thickness: (µm) or (µ")

Coercity: (Oe) or (kA/m)

Retentivity: (Gauss) or (mT)

Remanence: (nWb/m) or (SatFlux)
PDF Web Link
Image 3 Macro
NoPhoto.jpg
Image 4 Macro
Required Devices 3 ½” Floppy Disk High Density drive
Required Interface
Required Operating System
Required Applications
Formated Capacity Mac and PC
90K-2880K
1D (SS/SD 90K tpi67.5),
1D (SS/DD 180K tpi67.5), 1D (SS/DD 360K tpi135),
2D (2S/DD 720K tpi135), 2HD (2S/HD 1440K tpi135), 2ED 2S/ED 2880K tpi135). Capacity is approximate formatted capacity.
Required Drivers
Formating Type
Required Accessories
Required Form Factor
Compression/Codec
Requirement Specifications
Transfer Rate
Recording Format
Number Of Cylinders
Process/Technique
ISO
Colour Space
Resolution
Process
Block Error Rate
Push Pull Signal
Crosstalk
Reflectivity
Sensitivity
Lightfastness
Read Stability
Life: Manufacturer
Life: Community 5 yrs.
Web Ref: Materials
Substrate Stability
Image Stability
Re-Formatting Issues
Web Ref: Re-Formatting
Web Ref: Conservation
Web Ref: Environment
Date Created 04/04/2008
Last Modified by Douglas Elford-NLA
Date Modified 08/09/2011
 
   

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