Path: utzoo!mnetor!uunet!husc6!bbn!rochester!rutgers!galaxy!argus!smforest!wcom!frodo
From: frodo@wcom.UUCP (Jim Scardelis)
Newsgroups: comp.sys.ibm.pc
Subject: Re: DOS 3.3 feature vaporware?
Message-ID: <243@wcom.UUCP>
Date: 26 Apr 88 17:45:35 GMT
References: <Apr.12.12.26.22.1988.14955@athos.rutgers.edu> <1104@neoucom.UUCP>
Organization: Warner Computer Systems, Little Ferry NJ
Lines: 22
Keywords: %@^@$#^

In article <1104@neoucom.UUCP>, wtm@neoucom.UUCP (Bill Mayhew) writes:

> Note that IBM PS/2s have integral support for 1.44 meg, and don't
> require DRIVER.SYS.  I have a PS/2 model 80, and it insists on
> formatting even 720K disks as 1.44 meg.  Maybe it needs a DRIVER.SYS
> running to go to the low density mode for formatting.  The PS/2
> seems to correctly sense the density of disks that have already
> been formatted some place else.  By the way, for the record, I
> don't recommend formatting 720K disks for 1.44 meg.
> 

	The FORMAT command under DOS 3.3 takes a couple useful options:

	/T:<# of tracks>
	/N:<# of sectors>

For example, on a PS/2 model 50,60,or 80, to format a 720K disk, you do
a "FORMAT A:/T:80/N:9".

In the "old days" of the AT, you could FORMAT a 360K disk in a 1.2 MB
drive with a "FORMAT A: /4"...guess there got to be too many different
types of disks for IBM to assign a number to each...