A related question. Since 3.5 floppies are a questionable medium for storing old files, has anyone archived all their old stuff? I have like 200 floppies of images and games and old word documents. Any advice for burning all that stuff to CDs?
Third question. I found a 512Ke with the MacDove 2mb upgrade and SCSI upgrade. I asked this before about a regular 512k, but is it more likely to get the upgraded one online as a web server? It should run system 6.0.8 from one floppy with MacTCP, correct? Will it recognize a SCSI Ethernet connection if I stick one in the SCSI port? Also, will any web server run under 6.0.8 like MacHTTP or does that require system 7? I'm hoping the 2mbs might make it more feasible to get a server going. Anyone up for a group project to get this thing online? lol
Thomas
----- Original Message ----- From: "Don P." <[EMAIL PROTECTED]>
To: "Vintage Macs" <[email protected]>
Sent: Thursday, March 17, 2005 10:23 PM
Subject: Re: e: 400k disks
There have been a couple of comments recently about old floppies that have got me thinking. My recollection in regard to floppy disks: History: Pre-Floppy 3.5 will not be argued. The following relates to 3.5 inch Auto Shutter "Micro Floppy" aka "Microdisk" . As of 1998 is becoming a questionable medium for anything other than cheap transfer of small files, last ditch "temporary" storage or use on older machines. 1. 400K: MF1-DD "Single Sided, Double Density, Double Tracks" 1 square hole (lockable which will open the hole. Closed is open! ?Stupid!). This is the only disk 128K and 512K can read! Newer disks can format as 400K w/ preOS8. Not usable w/OS8 and up (data must be transferred to other disk by use of earlier OS) Disk can usually* be reformatted to be 800K. *the safety of the second side is iffy unless reformatted w/OS7 which skips bad spots. Will read as MFS unless OS7 trick used (see below 800K). (history note: I paid $60 @ 1985 dollars= ?100+$ current dollar price on 10 of these). 2. 800K: MF2-DD 2S/2D "Double Sided", "DS" disks:1 square hole, identical to 400K, but increase in technology (*Quality control?) allow newer (512Ke, Plus, MacII, and some SE) to use both sides of disks. Erasure allows choice of 400K on older machines. If reformated to 400K using OS7 holding down Option key allows HFS on 400K disk. Usable w/OS8 and up to ?. In essence, you can store 800K on a double-sided, instead of 400K on a single-sided disk despite both being made the same way. Inspection methods and formatting capability is the difference. 3. 1.4 MB: MF2HD or MFD-2HD "High Density" "HD" disks: 2 hole, major change allows X2 improvement. Save old disks for recycle since new disks won't format to old (unless fooled by taping over the second hole, which is not a good idea. Don't trust it!). 4. OS7; HFS (Hierarchical Filing System) instead of MFS (Macintosh Filing System) formating introduced ? Essentially this means that HFS floppy won't work pre-MacPlus and then only if OS7 or later installed. Double sided disks were formatted as single-sided disks under MFS. HFS was incorporated into the 128K ROMs in the Mac 512Ke and up. ? But Mac 512Ke doesn't have the 8MB req'd for OS7 ? 5. OS8 abandons older formatting capability. HFS+ becomes the new format.
Things that I am very uncertain about: MFS to HFS change; it seems to me that Folders were not really folders. You could put folders in other folders. Your files were really separated. No more 1 huge list of files in the open dialog boxes.??? The Mac 128K/512K could not use HFS with this System. Unless they had the "Hard Disk 20" file. ?? Early limitations were hardware, later limitations after Plus (HFS) were software.
The floppies's use now seems to be non-network transfer for: A. Economical Transfer: if all that you have to do is make quick person to person transfer, toss a floppy. b.: This is the last battle line in order to recover that which either has not been more efficiently stored or c. less reliable, less convenient storage of archived files seldom used. 1. Mac 128 and 512 require 400K floppy 2. Essentially there is no difference between 400K and 800K except how they are formatted (one side vs. both). Some early disks were bad enough that both sides can't be formatted so they are 400K only. 3. 512KE to
Please correct me if I'm wrong. Regardless I hope that this assists someone besides myself. Don
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