....The switch is in the drive.. at the front, inside the drive slot.... little buttons.
At the top of an HD disk there are two holes.... the write protect hole which when opened enables write protection, and the High Density hole, which is there to tell the drive that the disk is HD... The HD switch in the floppy drive will be pressed down if this hole is not present, telling the drive that the floppy is a DD floppy. If the hole is present, the switch button will just go through the hole and not be pressed, telling the drive that it is an HD floppy <http://dl.uncw.edu/digilib/chemistry/computer%20applications/hardware/chpt01c/floppy%20disk.gif> -Matthew S. Carpenter "Yarg!" Matthew Wheeler wrote: > Is this switch on the drive or the disk? I'll be embarrassed if I've > never seen one of these. > > Mw > > On Wed, Feb 11, 2009 at 12:53 AM, Bob C. <[email protected] > <mailto:[email protected]>> wrote: > > > The original 800K Apple diskette drives had one switch to detect > whether the > disk-lock window was open or closed. > > The 1.4MB FDHD or "SuperDrives" had two switches, one for the > disk-lock-detect, and one to detect HD diskettes (the "extra > hole"). In > fact, the presence of the two little switches at the front of the > drive is > the easiest way to determine if it's a 1.4MB drive. > > > ----- Original Message ----- > From: "Matthew Wheeler" <[email protected] > <mailto:[email protected]>> > To: <[email protected] > <mailto:[email protected]>> > Sent: Tuesday, February 10, 2009 11:18 PM > Subject: Re: 800k 3.5" disk drive for PowerMac 7100 > > > > The switch that was mentioned earlier was not an HD switch, but > a disk > lock. > > > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
