1.00 had 160K (SS, 8 SPT)
1.25/ PC-DOS 1.10 added 320K (DS), with /1 option for FORMAT for doing SS
2.00 added 180K and 360K (9 SPT), with /8 option for FORMAT for doing 8
SPT
2.11 some manufacturers added support for 3.5", but it was specific to
each of their customized version of MS-DOS
3.00 added 1.2M, with /4 option for FORMAT for doing 360K (in 1.2M drive)
3.20 added 720K, with /T:80 /N:9 being used to specify 720K
3.30 added 1.4M, added /F:2 for 720K to be easier to remember
5.00? added /F:720 to be easier to remember.
Windoze 98? dropped /F:2
Windoze XP dropped /F:720. /F:x is still supported, but only for
x == 1.44. /T:x/N:y is still supported, and is the only way to format
anything other than 1.4M. T can be 40 or 80, N can be 8, 9, or 15
T and N are used for selecting from an internal menu; they can not be set
to other values like a true variable.
With it, you can still do:
/T:80 /N:9 720K
/T:80 /N:8 640K Hmmm! haven't seen that one since the Toshiba T300!
/T:40 /N:9 360K
/T:40 /N:8 320K
/T:80 /N:15 1.2M
You can NOT do /T:40 /N:15, (you must choose between supported formats.)
--
Fred Cisin cisin_at_xenosoft.com
XenoSoft http://www.xenosoft.com
PO Box 1236 (510) 558-9366
Berkeley, CA 94701-1236
Received on Mon Oct 14 2002 - 18:41:01 BST