Browse Prior Art Database

Diskette Head Landing Zone

IP.com Disclosure Number: IPCOM000119804D
Original Publication Date: 1991-Mar-01
Included in the Prior Art Database: 2005-Apr-02
Document File: 1 page(s) / 28K

Publishing Venue

IBM

Related People

Arnold, AF: AUTHOR [+4]

Abstract

Disclosed is a head loading technique which eliminates damage to track 0 of a diskette when a read/write head, which may be contaminated with dust or other matter, is loaded on a diskette.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Diskette Head Landing Zone

      Disclosed is a head loading technique which eliminates
damage to track 0 of a diskette when a read/write head, which may be
contaminated with dust or other matter, is loaded on a diskette.

      This method is the modification of the PS/2* family system code
to access to track 79 or higher after the system POST.  When a
diskette is loaded into the Flexible Disk Drive (FDD), the head will
load on this higher numbered track rather than track 0.  This
significantly reduces the possibility that contamination of dust or
other matter, that may have built up on the heads of the FDD, will be
transferred or imbedded in the surface of the diskette in an area
critical to system operation.  Track 79 is seldom used in customer
applications and higher numbered tracks are never used for data,
significantly reducing customer perceived problems.  When
contaminated heads are loaded on track 0, which is where the heads
are normally loaded, the possibility of damaging system data, such as
the File Allocation Table (FAT), is very great.  This method can
improve customer satisfaction at very little cost.
*  Trademark of IBM Corp.